Chemistry MCQs For Job Test Preparation Mics 2

1 - Cement is a mixture of________________?

A. clay and clinker

B. clay lime stone and gypsum

C. lime stone and gypsum

D. lime stone and clay

clay lime stone and gypsum

2 - Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

A. Lime (CaO)

B. Silica (SiO2)

C. Alumina (Al2O3)

D. Magnesia (MgO)

Lime (CaO)

3 - Which sequence of steps is correct for the manufacture of cement ?

A. crushing heating mixing grinding

B. crushing mixing heating grinding and mixing

C. crushing grinding mixing heating

D. mixing heating grinding crushing

crushing grinding mixing heating

4 - The composition of mixture of clay and lime stone in the raw for cement material is __________________?

A. 75% lime stone and 25% clay

B. 25% lime stone and 75% clay

C. 15% lime stone and 55% clay

D. 55% lime stone and 15% clay

75% lime stone and 25% clay

5 - The important function of burning zone in the rotary kilm is __________________?

A. to dry the moisture of slurry

B. to decompose lime stone to unslaked lime

C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3

D. to reduce the impurities

combination of different oxides like CaO SiO2 Fe2O3 and Al2O3

6 - Which of the following is incorrect statement about nitrogen importance ?

A. It enhances plant growth

B. It is involved in the synthesis of protein and nucleic acids

C. it accelerates fruits and flowers growth

D. It is involved in the chlorophyll synthesis

it accelerates fruits and flowers growth

7 - Which of the following is macronutrient ?

A. Cu

B. Cl

C. H

D. Zn

8 - Which of the following is the most suitable catalyst for ammonia synthesis ?

A. Pt

B. ZnO + Cr2O3

C. Fe in fused mixture of Al2O3 + SiQ2 + MgO

D. All of the above

Fe in fused mixture of Al2O3 + SiQ2 + MgO

9 - Which of the following fertilizers is not useful for paddy rice ?

A. urea

B. DAP

C. Ammonium sulphate

D. Ammonium nitrate

Ammonium nitrate

10 - Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

A. KCI

B. KNO3

C. K2SO4

D. KMnO4

KNO3

11 - Argillaceous material does not include________________?

A. vlay

B. marine shells

C. slate

D. blast furnace slag

marine shells

12 - The nutrients which are required in very small amount for the normal growth of plants are called_________________?

A. nitrogenous fertilizers

B. micronutrients

C. phosphorus fertilizer

D. all of the above

micronutrients

13 - Which one of the following is an inorganic fertilizer ?

A. manure

B. urea

C. ammonium nitrate

D. All

ammonium nitrate

14 - The potassium present in plant help the plant to___________________?

A. form starch sugar and fibrous material

B. ripen the seeds and fruits

C. increase the resistance against disease

D. all the above statements are correct

all the above statements are correct

15 - What is clinker ?

A. roasted calcareous material

B. roasted argillaceous material

C. roasted calcareous and argillaceous material

D. roasted gypsum

roasted calcareous and argillaceous material

16 - Phosphorus helps in the growth of_________________?

A. root

B. leave

C. stem

D. seed

seed

17 - Which one of the following raw material is not present in the cement ?

A. lime stone

B. gypsum

C. KNO3

D. iron oxide

iron oxide

18 - The sequence of zones in the rotary kiln are as____________________?

A. dry zone burning zone decomposition zone cooling zone

B. cooling zone burning zone decomposition zone dry zone

C. burning zone cooling zone decomposition zone

D. dry zone decomposition zone burning zone cooling zone

dry zone decomposition zone burning zone cooling zone

19 - The rate of reaction___________________?

A. Increases as the reaction proceeds

B. Decreases as the reaction proceeds

C. Remains the same as the reaction proceeds

D. May decrease or increase as the reaction proceeds

Decreases as the reaction proceeds

20 - The specific rate constant of a first order reaction depends on the________________?

A. Time

B. Concentration of the reactant

C. Temperature

D. Concentration of the product

Temperature

21 - The value of activation energy is primarily determined by_______________?

A. Temperature

B. Effective collision

C. Concentration of reactants

D. Chemical nature of reactants and products

Effective collision

22 - Spontaneous reactions are_______________?

A. Moderate

B. Slow

C. Fast

D. not natural

Fast

23 - Unit of rate of reaction is_________________?

A. Moles dm-3 sec-1

B. Moles dm-3

C. Moles sec-1

D. Mol-1 dm3 sec-1

Moles dm-3 sec-1

24 - Rate of disappearance of reactant is equal to_________________?

A. Rate of reaction

B. Rate of formation of product

C. Energy released during reaction

D. A and B

Rate of reaction

25 - For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?

A. Single

B. Square

C. Cube

D. Raise to power four

Square

26 - Radiations are absorbed in_______________?

A. Spectrophotometer method

B. Dilatometric method

C. Optical relation method

D. Refractometric method

Spectrophotometer method

27 - Energy of reactant higher than energy of product favours _______________?

A. Endothermic

B. Exothermic

C. Moderate reaction

D. No reaction

Exothermic

28 - Which of the following will have very high rate of reaction ?

A. Double decomposition reaction

B. Neutralization reaction

C. Ionic reactions

D. all of above

all of above

29 - Anything which increases rate of reaction without being involved in the reaction________________?

A. Promoter

B. Catalyst

C. Inhibitor

D. All of the above

Catalyst

30 - When catalysts and reactants are in more than one phase it is________________?

A. Homogeneous catalysis

B. Heterogeneous catalysis

C. Catalysis

D. Ea

Heterogeneous catalysis

31 - Biocatalytical proteins are_________________?

A. Enzymes

B. Substrate

C. Lipids

D. any of above

Enzymes

32 - An enzyme has its specificity due to________________?

A. Substrate

B. Structure

C. Temperature

D. Pressure

Structure

33 - A substance which increases the reactivity of enzyme is called_________________?

A. Promoters

B. Inhibitors

C. Stimulators

D. Non-activators

Promoters

34 - When the reaction completes in more than one steps rate of reaction will be determined by________________?

A. Fast step

B. Slowest step

C. All steps

D. Molecularity of the reaction

Slowest step

35 - Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

A. Endothermic

B. Exothermic

C. Moderate

D. Fast

Endothermic

36 - Which statement is incorrect about catalyst___________________?

A. it is used in smaller amount

B. decrease activation energy

C. specific in action

D. it affects specific rate constant

it affects specific rate constant

37 - Which of the following type of reaction is 3rd order reaction_________________?

A. 2N2O5 = 2N2O4 + O3

B. NO + O3 ? NO2 + O2

C. 2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2

D. None of these

2FeCl3 + 6KI ? 2FeI2 + 6KCl + I2

38 - The addition of a catalyst to the reaction system__________________?

A. Increases the rate of forward reaction only

B. Increases the rate of reverse reaction

C. Increases the rate of forward but decreases the rate of backward reaction

D. Increases the rate of forward as well as backward reaction equally

Increases the rate of forward as well as backward reaction equally

39 - On increasing the temperature the rate of reaction increases mainly because_________________?

A. The activation energy of the reaction increases

B. Concentration of the reacting molecules increases

C. Collision frequency increases

D. None of these

Collision frequency increases

40 - Sum of exponents of molar concentration is called___________________?

A. Order of reaction

B. Molecularity

C. Rate of reaction

D. Average of reaction

Order of reaction

41 - In rate expression the concentration of reactants is negative. It shows_______________?

A. Concentration of reactant does not change

B. Concentration of product increases

C. Concentration of reactant decreases

D. Concentration of reactant increases

Concentration of reactant decreases

42 - When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in__________________?

A. I and II quadrant

B. II and III quadrant

C. III and IV quadrant

D. II and IV quadrant

II and IV quadrant

43 - Rate of reaction when concentration of reactants are taken as unity is called_________________?

A. Arrhenius constant

B. Molecularity

C. Specific rate constant

D. Ideal rate constant

Specific rate constant

44 - Which order of reaction obeys the relation t1/2 = 1/Ka____________________?

A. First order

B. Second order

C. Third order

D. Zero order

Second order

45 - Activated complex is formed due to________________?

A. Pressure

B. Effective collision

C. Ineffective collisions

D. Temperature

Effective collision

46 - Energy required to form transition state is called _________________?

A. Ea

B. P.E

C. V

D. K.E

47 - Greater the conc. Of reactant__________________?

A. Greater will be dx/dt

B. Lesser will be dx/dt

C. dx/dt will be moderate

D. any of above

Greater will be dx/dt

48 - The substances that reduces the effectiveness of a catalyst are called ___________________?

A. Promoters

B. Poisoning catalysts

C. Inhibitors

D. pro-catalysts

Poisoning catalysts

49 - Each catalyst has_________________?

A. Specificity

B. Special structure

C. Its own Ea

D. all of above

all of above

50 - A catalyst can not effect__________________?

A. Products

B. Chemical equilibrium

C. Reactants

D. both A & B

both A & B

51 - Co-enzymes are_________________?

A. Non proteineous

B. Proteineous

C. sugars

D. lipids

Non proteineous

52 - End name of enzyme is___________________?

A. yl

B. ase

C. one

D. al

ase

53 - For determining the order of reaction we use__________________?

A. Refractometric method

B. Dilatometric method

C. Optical activity method

D. Half life method

Half life method

54 - Elements in the same vertical group of the periodic table have same_______________?

A. Number of valence electrons

B. Atomic number

C. Atomic mass

D. Atomic volume

Number of valence electrons

55 - Which set of elements is listed in order of increasing ionization energy ?

A. Sb < As < S < P < Cl

B. Cl < Sb < P < As < S

C. As < Cl < P < S < Sb

D. Sb < As < Cl < S < P

Sb < As < S < P < Cl

56 - Which of the p-block elements are not representative elements ?

A. Alkali metals (I-A)

B. Group-14 elements (IV-A)

C. Group-18 elements (VIII-A)

D. Halogens (VII-A)

Group-18 elements (VIII-A)

57 - Which of the following will not form crystalline structure with opporitely charged ions_________________?

A. H+

B. H-

C. Mg2+

D. Ca2+

H+

58 - Periodic table provides a basic framework to study elements with respect to their__________________?

A. Physical properties

B. Chemical properties

C. Properties of their compounds

D. All

All

59 - Concept of Triads was introduced by_______________?

A. Dobereiner

B. Newland

C. Mendeleev

D. Al-Razi

Dobereiner

60 - Elements with similar chemical properties appear in the_________________?

A. Same family

B. Same period

C. p block elements

D. Right upper corner

Same family

61 - In modern periodic table all the leements are arranged in ascending order of__________________?

A. Valency

B. Atomic mass

C. Atomic number

D. Valence electrons

Atomic number

62 - Inner transition elements are called _________________?

A. Lanthanides

B. Actinides

C. Rare earth metals

D. All

All

63 - Non-metals usually form _________________ oxides?

A. Acidic

B. Amphoteric

C. Neutral

D. All of the above

Acidic

64 - Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?

A. Both are electropositive

B. Similar outer most shell electronic configuration

C. Both form ionic compounds

D. All

All

65 - Which one of the following sets consists of all coinage metals ?

A. Cu Hg Au

B. Cu Ag Au

C. Ag Au Hg

D. Cu Fe Au

Cu Ag Au

66 - Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?

A. The nature of its oxides

B. The charge on its ions

C. The formula of its oxide

D. Its number of isotopes

Its number of isotopes

67 - The atomic radii decreases by increasing atomic number in________________?

A. Alkali metal

B. Alkaline earth metal

C. Elements from Li to Ne

D. Halogens

Elements from Li to Ne

68 - An element has electronic conviguration 1s2 2s2 2p2. It belongs to__________________?

A. Group II-A

B. Group IV-A

C. Group VII-A

D. Group VI-A

Group IV-A

69 - Which of the following ion is stable in aqueous solution ?

A. H+

B. H-

C. Cl-

D. All are stable

Cl-

70 - The atoms of same element having same atomic number but different mass number are called____________________?

A. Isobars

B. Isomers

C. Isotopes

D. Isotropes

Isotopes

71 - Shielding effect across the period_________________?

A. Increases

B. Decreases

C. Can not be predicted

D. Remains constant

Remains constant

72 - Higher value of electron affinity means__________________?

A. Atom will lose electron easily

B. Atom will gain electron easily

C. Atom may form di-positive ion

D. The reason is unknown

Atom will gain electron easily

73 - Melting points of VII-A group elements down the group ____________________?

A. Increase

B. Decrease

C. Remain constant

D. No regular trend

Increase

74 - Which of the following possesses maximum hydration energy ?

A. Na+

B. K+

C. Mg+2

D. Ca+2

Mg+2

75 - True increasing order of acidity of the oxides of Mn is_________________?

A. MnO < MnO2 < Mn2O7

B. Mn2O7 > MnO2 > MnO

C. MnO2 > MnO > Mn2O7

D. MnO2 > Mn2O7 > MnO

Mn2O7 > MnO2 > MnO

76 - Which one of the following element has highest oxidation state in its compounds ?

A. Cr

B. Mn

C. Sn

D. O

77 - Which of the following cannot exist in solution_________________?

A. O-2

B. H+

C. Cl-

D. Na+

O-2

78 - An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

A. Group IA

B. Group IB

C. Group VIIA

D. Group VIII

Group IA

79 - Which of the following always increases on going from top to bottom in a group ?

A. Metallic character

B. Electronegativity

C. Oxidizing power

D. Tendency to get reduced

Metallic character

80 - Among halogens the highest boiling point is of___________________?

A. Flrorine

B. Chlorine

C. Bromine

D. Iodine

Iodine

81 - The scientist who did not contribute in the construction of periodic table ?

A. Al-Razi

B. Moseley

C. Dobereiner

D. Democritus

Democritus

82 - Which element was not known when Mendeleev proposed his classification ?

A. Hydrogen

B. Sodium

C. Copper

D. Germanium

Germanium

83 - Noble gases are named so because they are__________________?

A. less reactive

B. Zero group elements

C. Having completely filled valence shell

D. All

All

84 - The longest period in the modern periodic table is___________________?

A. 6th

B. 7th

C. 2nd and 3rd both

D. 5th

6th

85 - Seventh period contains _________________ normal elements ?

A. 2

B. 4

C. 6

D. 8

86 - Modern periodic table has been divided in ___________ blocks?

A. 2

B. 4

C. 8

D. 7

87 - Amphoteric exides are those which possess ____________ properties?

A. Acidic

B. Basic

C. Acidic and basic

D. Neutral and acidic

Acidic and basic

88 - Hydrogen resembles with carbon because of having________________?

A. Same number of electrons in the valence shell

B. Similar physical state

C. Remarkable reducing properties

D. Homovalent (show same valency)

Remarkable reducing properties

89 - In which of the following pairs are elements belonging to the same group ?

A. Boron & Beryllium

B. Nitrogen & Phosphorous

C. Magnesium & Aluminium

D. Gallium & Helium

Nitrogen & Phosphorous

90 - Which one of the following is not a periodic property ?

A. Melting point of elements

B. Boiling point of elements

C. Ionization energy of elements

D. Coordination number of ions

Coordination number of ions

91 - Which discovery caused a revision in the periodic law as stated by Mendeleev ?

A. Location of nucleus by Rutherford

B. Atomic number by Moseley

C. X-rays by Roentgen

D. Natural radioactivity by Henry Bacquerel.

Atomic number by Moseley

92 - The property which increases upto group IV-A then decreases on wards_______________?

A. Ionization energy

B. Atomic radii

C. Melting & boiling points

D. Atomic volume

Melting & boiling points

93 - Deuterium reacts with oxygen to form________________?

A. Hard water

B. Heavy water

C. Soft water

D. Water gas

Heavy water

94 - Ionization energy depends upon____________________?

A. Nuclear charge

B. Atomic size

C. Shielding effect

D. I.E depends upon all of the above and nature of orbital

I.E depends upon all of the above and nature of orbital

95 - Addition of 2nd electron to a uni negative ion is always____________________?

A. Exothermic

B. Endothermic

C. Data is insufficient

D. Unpredictable

Endothermic

96 - Metallic characters of alkali metals_____________________?

A. Increase down the group

B. Decrease down the group

C. No regular trend

D. Remain same

Increase down the group

97 - Oxidation state of an atom represents____________________?

A. Number of electrons gained

B. Number of electrons lost

C. Apparent charge in compound

D. Its vacancies

Apparent charge in compound

98 - Halides in which halogen atoms act as a bridge between two atoms of the other element are called___________________?

A. Covalent halides

B. Electronegative halides

C. Polymeric halides

D. Polymeric hydrides

Polymeric halides

99 - Iodine is solid due to_________________?

A. Strong covalent bond

B. Large value of dipole moment

C. High polarizability

D. Strong hydrogen bonding

High polarizability

100 - Keeping in view the size of atom which order is correct one ?

A. Mg > Sr

B. Ba > Mg

C. Lu > Ce

D. C1 > I

Ba > Mg

101 - When €“ COOH is attached directly to the benzene ring the acid is called__________________?

A. Aliphatic

B. Alicyclic

C. Carboxylic

D. Aromatic

Aromatic

102 - The common thing in phthalic acid and oxalic acid is that both are_________________?

A. Aromatic

B. Dicarboxylic

C. Hydrocarbons

D. Strong acids

Dicarboxylic

103 - The acid which is used as ink remover is_________________?

A. Oxalic acid

B. Succinic acid

C. Adipic acid

D. Acetic acid

Oxalic acid

104 - Which acid is the manufacture of synthetic rubber ?

A. Acetic acid

B. Formic acid

C. Carbonic acid

D. Benzoic acid

Acetic acid

105 - In the formation of Zwitter ions proton goes from____________________?

A. Carboxyl to amino group

B. Amino to carboxyl group

C. Amino group only

D. Carboxyl group only

Carboxyl to amino group

106 - The organic acid that does not has COOH group is___________________?

A. phthalic acid

B. carbolic acid

C. Maleic acid

D. Succinic acid

carbolic acid

107 - The test which is used for the identification of amino-acids is_________________?

A. Ninhydrin test

B. Molisch test

C. Biuretic test

D. Benedict test

Ninhydrin test

108 - Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces_______________?

A. CO2

B. Alkane

C. Ester

D. Acidamide

Acidamide

109 - The complete reduction carboxylic acid results in the formation of________________?

A. Alkyne

B. Alkene

C. Alkane

D. Alcohol

Alkane

110 - Picric acid is_________________?

A. monocarboxylc acid

B. dicarboxylic acid

C. aromatic carboxylic acid

D. none of these

none of these

111 - Essential amino acids are___________________?

A. 5

B. 10

C. 15

D. 20

112 - Which of the following is not a fatty acid ?

A. Propanoic acid

B. Acetic acid

C. Phthalic acid

D. Butanoic acid

Phthalic acid

113 - The basic hydrolysis of ethyl acetate produces__________________?

A. ethanol

B. acetic acid

C. ethanol and acetic acid

D. ethanol and sodium acetate

ethanol and sodium acetate

114 - Which of the following is not an ester_________________?

A. amyl acetate

B. sodium butyrate

C. isobutyle formate

D. octyl acetate

sodium butyrate

115 - Which of the following has orange flavour__________________?

A. isobutyl formate

B. octyl acetate

C. ethyl butyrate

D. amyl lactate

octyl acetate

116 - Amino acids present in cheese___________________?

A. lysine

B. alanine

C. tyrosine

D. proline

tyrosine

117 - Which of the following is an unsaturated carboxylic acid___________________?

A. malonic acid

B. oxalic acid

C. succinic acid

D. maleic acid

maleic acid

118 - The common name of propane 1 3-dioic is_________________?

A. Oxalic acid

B. Aromatic acid

C. Malonic acid

D. Fumaric acid

Malonic acid

119 - The irritation caused by red ants bite is due to____________________?

A. Lactic acid

B. Formic acid

C. Uric acid

D. Acetic acid

Formic acid

120 - Which of the following is the strongest acid ?

A. Water

B. Formic acid

C. Acetic acid

D. Propanoic acid

Formic acid

121 - Acidic amino acids have________________?

A. 2 amino groups and 1 carboxylic group

B. 1 amino and 1 carboxylic groups

C. 2 carboxylic groups and 1 amino group

D. 2 amino and 2 carboxylic groups

2 carboxylic groups and 1 amino group

122 - The term internal salt refers to_____________________?

A. Acidic character of amino acids

B. Basic character of amino acids

C. Dipolar character of amino acids

D. Non-polar structure of amino acids

Dipolar character of amino acids

123 - Which one of the following acids is present in lemon juice ?

A. Citric acid

B. Benzoic acid

C. Tartaric acid

D. Oxalic acid

Citric acid

124 - Which one of following amino acid is neither acidic nor a basic in nature ?

A. Lysine

B. Histidine

C. Proline

D. Glutamic acid

Proline

125 - Glycine is the name of an amino acid because___________________?

A. Sweet taste

B. Bitter taste

C. Shining appearance

D. Green colour

Sweet taste

126 - The organic acid that can be made from ethanol is_________________?

A. Acetic acid

B. Formic acid

C. Butanoic acid

D. Citric acid

Acetic acid

127 - The formula of palmitic acid_________________?

A. C15H31COOH

B. C13H27COOH

C. C17H33COOH

D. C17H35COOH

C15H31COOH

128 - The aliphatic monocarboxylic acids are obtained by the hydrolysis of________________?

A. proteins and oild

B. fats and proteins

C. fats and oils

D. all above

fats and oils

129 - An acid with unpleasant smell_________________?

A. formic acid

B. acetic acid

C. propionic acid

D. butyric acid

butyric acid

130 - Carboxylic acid on reduction with HI / phosphorous yields_________________?

A. alkane

B. alcohols

C. aldehydes

D. ketones

alkane

131 - The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called _________________?

A. esterification

B. neutralization

C. hydrolysis

D. saponification

esterification

132 - Which of the following is not an amino acids_____________________?

A. glumatic acid

B. lactic acid

C. aspartic acids

D. glycine

lactic acid

133 - Which of the following reaction is not shown by ketones ?

A. reaction with HCN

B. reaction with NaHSO3

C. reaction with 2 4 dinitrophenyl hydrazine

D. reaction with Fehling solution

reaction with Fehling solution

134 - Which of the following substances does not give iodoform test ?

A. acetaldehyde

B. ethyl alcohol

C. methyl alcohol

D. acetone

methyl alcohol

135 - Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?

A. formaldehyde

B. accetaldehyde

C. benzaldehyde

D. acetone

acetone

136 - Which of the following reaction is not shown by ketones ?

A. reaction with HCN

B. reaction with NaHSO3

C. reaction with 2 4 dinitrophenyl hydrazine

D. reaction with Fehling solution

reaction with Fehling solution

137 - Which of the following substances does not give iodoform test ?

A. acetaldehyde

B. ethyl alcohol

C. methyl alcohol

D. acetone

methyl alcohol

138 - Which of the following compounds will react with Tollens reagent ?

A. CH3-CHO

B. CH3-CH-CH3

C. CH3-COOH

D. CH3-CO-CH2-CH3

CH3-CHO

139 - Cannizzaros reaction is not given by__________________?

A. formaldehyde

B. acetaldehyde

C. benzaldehyde

D. trimethyl acetaldehyde

acetaldehyde

140 - Ketones are comparatively less reactive than aldehdye. It is due to_______________?

A. alkyl groups are electron donating

B. steric hindrance

C. Both A and B

D. none

Both A and B

141 - Which of the following is not a use of formaldehyde ?

A. in silvery mirror

B. in making medicine urotropine

C. in making throat lozenges

D. in making acetic acid

in making acetic acid

142 - Which of the following is not a use of acetaldehyde ?

A. formation of phenolic resins

B. formation of mirror

C. antiseptic inhalant

D. formation of throat lozenges

formation of throat lozenges

143 - Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?

A. Nylon 66

B. urotropine

C. Aniline formaldehyde plastic

D. Bakelite

Bakelite

144 - Which of the following will not give addition reaction with NaHSO3________________?

A. HCHO

B. CH3CHO

C. CH3-CH2-CHO

D. None of the above

CH3-CH2-CHO

145 - Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide ?

A. carbonic acid

B. ethanol

C. acetic acid

D. methanoic acid

acetic acid

146 - Oxidation of primary alcohol gives________________?

A. ketone

B. Aldehyde

C. Alkene then - COOH

D. Ester

Aldehyde

147 - Ncleophilic addition reactions are catalysed__________________?

A. Acid

B. Base

C. Both A and B

D. None

Both A and B

148 - Acetal on acid hydrolysis generates__________________?

A. Alcohol

B. Ketone

C. Both A & B

D. None of the above

Both A & B

149 - Tetrahydroborate ion is the source of_______________?

A. proton

B. H+

C. both A & amp; B

D. H-

H-

150 - Dry distillation of calcium acetate results in the formation of_________________?

A. formaldehyde

B. acetaldehyde

C. methane

D. acetone

acetone

151 - Cannizaros reaction takes place through the transfer of ____________________ from complex anion?

A. hydrogen ion

B. hydride ion

C. oxide ion

D. methoxide ion

hydride ion

152 - Iodoform test can be used to distinguish between_________________?

A. ethanol and methanol

B. acetaldehyde and methanal

C. acetone and diethyl ketone

D. all of the above

all of the above

153 - Which of the following will have the highest boiling point ?

A. methanol

B. ethanal

C. propanal

D. hexanone

hexanone

154 - The carbon atom of carbonyl group is__________________?

A. sp hybridized

B. sp2 hybridized

C. cp3 hybridized

D. dsp2 hybridized

sp2 hybridized

155 - Formalin is ___________ solution of formaldehyde in water?

A. 0.1

B. 0.2

C. 0.4

D. 0.6

0.4

156 - Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?

A. electronphilic addition

B. electrophilic substitution

C. nucleophilic addition

D. nucleophilic substitution

nucleophilic addition

157 - Which of the following reactions may be assoclated with aldehyde and ketone ?

A. nucleophile addition

B. polymerization

C. oxidation

D. all of the above

all of the above

158 - Which of the following reagents will react with both aldehydes and ketones ?

A. Grignard reagent

B. Tollens reagent

C. Fehlings reagent

D. Benedicts reagent

Grignard reagent

159 - Which of the following do not give aldol condensation reactions ?

A. formaldehyde

B. acetaldehyde

C. diemthyl ketone

D. propionaldehyde

formaldehyde

160 - Formaldehyde and lactose are combined to produce throat lozenges named as__________________?

A. formamint

B. lactomint

C. aldomint

D. formalactose

formamint

161 - Formula of haloform is_________________?

A. HCOX

B. CX4

C. CHX3

D. CH3X

CHX3

162 - Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

A. 0.6

B. 0.5

C. 0.52

D. 0.08

0.52

163 - On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

A. pink

B. black

C. yellow

D. brick red

brick red

164 - Aldehyde and ketone have same general formula for homologous series_________________?

A. CnH2nO2n

B. CnH2n

C. CnH2nO

D. CnH2nOn+1

CnH2nO

165 - Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

A. PdCl2

B. Cu2Cl2

C. CuCl2

D. PbCl2

CuCl2

166 - Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?

A. Tartaric acid

B. Propanoic acid

C. Lactic acid

D. Valeric acid

Lactic acid

167 - Which one exhibits aldol condensation____________________?

A. HCHO

B. C6H5CHO

C. Cl3CCHO

D. CH3COCH3

CH3COCH3

168 - Which of the following is a symmetrical ketone___________________?

A. 3 - hexanone

B. acetone

C. butanone

D. 2-pentanone

acetone

169 - In base catalyzed reaction of carbonyl compound the catalyst___________________?

A. increases the nucleophilic character of reagent

B. increases electrophilic character of carbonyl compound

C. acidic character of reagent

D. both a and b

increases the nucleophilic character of reagent

170 - A elements are named as alkali metals because_______________?

A. Their oxides are basic

B. Their oxide and hydroxides are water soluble

C. Both A & B

D. They are found in earth

Both A & B

171 - Formula of Chile saltpetre is__________________?

A. NaNO3

B. CaCO3

C. Ba (NO3)2

D. NH4Cl

NaNO3

172 - The oxides of beryllium BeO is_______________?

A. Acidic

B. Basic

C. Amphoteric

D. Neutral

Amphoteric

173 - Li is different from its family members due to____________________?

A. small size

B. high charge density

C. less electropositivity

D. all of the above

all of the above

174 - Carbonates of lithium are not stable like that of sodium due to________________?

A. Low electronegativity

B. Low electropositivity

C. Low charge density

D. Not known yet

Low electropositivity

175 - Which one of the following is not an alkali metal ?

A. Francium

B. Caesium

C. Rubidium

D. Radium

Radium

176 - The element cesium bears resemblance with________________?

A. Ca

B. Cr

C. Both of the above

D. None of the above

None of the above

177 - Downs cell is used to prepare_________________?

A. Sodium carbonate

B. Sodium bicarbonate

C. Sodium metal

D. Sodium hydroxide

Sodium metal

178 - Ammonia may be prepared by heating ammonium chloride with_______________?

A. Water

B. NaCl

C. Aqueous sodium hydroxide

D. H2SO4

Aqueous sodium hydroxide

179 - Crystals of Na2CO3. 10H2O when exposed to air_________________?

A. Lose water and remain solid

B. Gain water and remain solid

C. Gain water and become liquid

D. Remains unchanged

Lose water and remain solid

180 - Which one of the following gives white precipitate with aqueous solution of BaCl2?

A. NaHCO3

B. NaNO3

C. Na2CO3

D. Na2CrO4

Na2CO3

181 - The deliquescence is a property in which a solid____________________?

A. Absorbs moisture and remains solid

B. Absorbs moisture and turns to liquid form

C. Loses water of crystallization

D. Increases the number of water of crystallization

Absorbs moisture and turns to liquid form

182 - In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?

A. Hydroxide ions to reach anode

B. Chlorine gas to mix

C. Cathode to decay

D. All of the above

Hydroxide ions to reach anode

183 - Alkali and alkaline earth metals impart colours when heated over burner. It is due to______________?

A. Smaller electronegativity of alkali metals

B. Smaller ionic radius of these metals

C. De-excitation of electrons from higher energy levels to low energy level

D. Excitation of electrons from low energy levels to higher energy levels

De-excitation of electrons from higher energy levels to low energy level

184 - First ionization potential of alkaline earth metal is greater than alkali metals because___________________?

A. They are more reactive

B. They have greater atomic radii

C. They have smaller atomic sizes

D. All

They have smaller atomic sizes

185 - NaOH is named as caustic soda because________________?

A. It corrodes the organic tissues

B. It is used in soda water

C. It reacts with chlorine gas

D. It reacts with fats to form soap

It corrodes the organic tissues

186 - Carnalite has chemical formula__________________?

A. KCI

B. KCI.MgCl2.6H2O

C. Na2B4O7.10H2O

D. CaCO3.MgCO3

KCI.MgCl2.6H2O

187 - Electrolysis of dilute solution of NaCl results at the anode_______________?

A. sodium

B. hydrogen

C. chlorine

D. oxygen

oxygen

188 - Which ion will have maximum value of heat of hydration ?

A. A1+3

B. Cs+

C. Ba+

D. Mg+2

A1+3

189 - Which one is natron ?

A. Na2CO3

B. Na2CO3.10H2O

C. Na2CO3.H2O

D. NaHCO3

Na2CO3.H2O

190 - Which one is least ionic in nature and decompose on heating ?

A. LiOH

B. NaOH

C. KOH

D. CsOH

LiOH

191 - The word Alkali means__________________?

A. Base

B. Basic salt

C. Ashes

D. Spirit

Ashes

192 - Which element is necessary for normal leaf development ?

A. Si

B. Ba

C. Mg

D. Ca

193 - Nitrates of which pair of elements give different products on thermal decomposition ?

A. Na K

B. Mg Ca

C. Li Na

D. Li Ca

Li Na

194 - Which of the following sulphates is not soluble in water ?

A. Sodium sulphate

B. Potassium sulphate

C. Zinc sulphate

D. Barium sulphate

Barium sulphate

195 - The ore CaSO4.H2O has the general name_______________?

A. Gypsum

B. Dolomite

C. Calcite

D. Plaster of Paris

Gypsum

196 - Which one of the following substances conducts electricity by the movement of ions ?

A. Graphite

B. Copper

C. Molten sodium chloride

D. Mercury

Molten sodium chloride

197 - Which one of the following carbonate is water insoluble ?

A. Na2CO3

B. K2CO3

C. (NH4)2CO3

D. CaCO3

CaCO3

198 - In diaphragm cell hydrogen is discharged by the reduction of__________________?

A. Water

B. HCI

C. Na+

D. NaCl

Water

199 - Gypsum is applied to the soil as a source of________________?

A. Ca and P

B. S and P

C. Ca and S

D. we could not apply

Ca and S

200 - Which one of the following alkali metals forms only normal oxide when it reacts with O2 ?

A. Lithium

B. Sodium

C. Potassium

D. Rubidium

Lithium

201 - Which one of the following pairs shown diagonal relationship in the periodic table ?

A. Sodium and Lithium

B. Lithium and magnesium

C. Lithium and beryllium

D. Boron and Beryllium

Lithium and magnesium

202 - Sodium is not observed in +2 oxidation state because of its__________________?

A. high first ionization potential

B. high second ioniation potential

C. high ionic radius

D. high electronegativity

high second ioniation potential

203 - Magnesium metal does not burn in the vessel containing_______________?

A. N2

B. O2

C. N2 and O2

D. Ne

204 - Second ionization potential of alkali metals are very high due to_______________?

A. being s-block elements

B. inert gas configurations

C. ns1 electronic configuration

D. being metals

inert gas configurations

205 - Which one can form complex ?

A. Na

B. Cr

C. Li

D. K

206 - During sulphonation of benzene H2SO4 generates the electrophile _________________?

A. HSO4-

B. SO2

C. SO3

D. H+

SO3

207 - Which compound will readily undergo sulphonation ?

A. Benzene

B. Nitro benzene

C. Toluene

D. Chlorobenzene

Toluene

208 - Which one of the following statement is not correct about benzene ?

A. On hydrogenation 208 KJ/mole is liberated

B. C-H bond length in benzene is 1.09 A?

C. Molecular mass of benzene is 78.108

D. Resonance energy of benzene is 150.5 K Cal/mole

Resonance energy of benzene is 150.5 K Cal/mole

209 - Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?

A. Dows process

B. Friedel & Craft acylation

C. Friedel & Craft alkylation

D. Clemmenson reduction

Friedel & Craft alkylation

210 - Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?

A. Toluene

B. Ethyl benzene

C. n-propyl benzene

D. All

All

211 - What is the molecular formula of Benzenetriozonide ?

A. C6H6O9

B. C6H5O8

C. C6H5O9

D. C6H6O6

C6H6O9

212 - The hydrolysis of Benzenetrizonide will yield three moles of____________________?

A. Glyoxime

B. Benzaldehyde

C. Glycol

D. Glyoxal

Glyoxal

213 - In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?

A. Hydrogen

B. Oxygen

C. Sulphur

D. OH

Sulphur

214 - Aniline is a derivative of benzene which contains__________________?

A. Imino group

B. Amino group

C. Amide group

D. Nitro group

Amino group

215 - Nitration of chlorobenzene gives___________________?

A. o €“ chloronitrobenzene

B. p €“ chloronitrobenzene

C. m €“ chloronitrobenzene

D. A & B

A & B

216 - By which method the molecular mass of benzene was determined as 78.108 ?

A. Specific gravity method

B. Vapour density method

C. X-ray diffraction method

D. Distillation methos

Vapour density method

217 - Chlorination of toluene in the presence of sublight produces_________________?

A. Benzyl chloride

B. o - chlorotoluene

C. p - chlorotoluene

D. benzoic acid

Benzyl chloride

218 - Mixture of catalysts Cr2O3 + A?2O3 + SiO2 at 500?C are used when benzene is prepared from_______________?

A. acetylene

B. N-hexane

C. Benzene sulphonic acid

D. Sodium benzoate

N-hexane

219 - Which is fused cyclic aromatic compound _____________________?

A. diphenyl amine

B. diphenyl methane

C. naphthalene

D. biphenyl

naphthalene

220 - Acetophenone is a_____________________?

A. Ether

B. Ketone

C. Aldehyde

D. Ester

Ketone

221 - Benzene does not undergo___________________?

A. Substitution reaction

B. Addition reaction

C. Polymerization reactions

D. Oxidation reactions

Polymerization reactions

222 - Nitronium ion is___________________?

A. NO3

B. NO

C. NO2-

D. NO2+

NO2+

223 - Benzene is heated in air with V2O5 at 450°C it undergoes________________?

A. Substitution reaction

B. Addition reaction

C. Elimination reaction

D. Oxidation reaction

Oxidation reaction

224 - The preparation of benzene from acetylene can also be said as_________________?

A. Oxidation

B. Polymerization

C. Dehydration

D. Condensation

Polymerization

225 - Ozonolysis of benzene produces___________________?

A. Glycol

B. Glyoxal

C. Vicinal diol

D. Both B & C

Glyoxal

226 - Boron is non-netal whereas A1 is metal. It is due to_______________________?

A. Small size

B. High nuclear charge

C. Both A and B

D. No authorized justification yet

Both A and B

227 - One of the outstanding features of boron is its ability to form__________________?

A. Molecular addition compounds

B. Molecular crystals

C. Semiconductors

D. Ionic compounds

Molecular addition compounds

228 - Borax is a white crystalline solid and it is_________________?

A. More soluble in cold water

B. More soluble in hot water

C. Insoluble in water

D. Soluble only in organic solvents

More soluble in hot water

229 - Special features of borate glass is that it is_________________?

A. Heat resistant

B. Low melting

C. Used to prepare chemical garden

D. Green in colour

Heat resistant

230 - Aluminium oxide is_________________?

A. Acidic oxide

B. Basic oxide

C. Amphoteric oxide

D. It does not exists

Amphoteric oxide

231 - Which electronic configuration corresponds to an element of group IIIA ?

A. 1s2 2s2 2p3

B. 1s2 2s2 2p6 3s2 3p1

C. 1s2 2s2 2p4

D. 1s2 2s2 2p6 3s2 3p6 4s2 3d1

1s2 2s2 2p6 3s2 3p1

232 - In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?

A. 4

B. 2

C. 1

D. 6

233 - Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107°C.

A. 0.26

B. 0.27

C. 0.37

D. <2.6%

0.37

234 - Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?

A. As nitrometer

B. To remove air bubbles from molten metal

C. To produce alloy

D. As insulator

To remove air bubbles from molten metal

235 - Silicon differ from silica by a group of__________________?

A. Ch3

B. OH

C. OCH3

D. O2

Ch3

236 - Boron is non metal while other elements of IIIA group are metals. This is because______________?

A. it has small size

B. it has high nuclear charge

C. it forms molecular addition compounds

D. all of the above

all of the above

237 - The coloured glassy mass in borax bead test is due to the formation of___________________?

A. metal borate

B. metal meta borate

C. metal boride

D. metal silicate

metal meta borate

238 - If temperature of gallium arsenide is increased then its conductivity will___________________?

A. decrease

B. increase

C. remains constant

D. first decreases then increases

increase

239 - Which of the following will decompose to produce litharge_________________?

A. Pb2O

B. Pb3O4

C. PbO2

D. All of the above

Pb3O4

240 - Which of the following is metasilicic acid ?

A. H2SnO3

B. H2SiO3

C. H3AsO4

D. H3SbO4

H2SiO3

241 - Boron in soil has been considered micronutrient for_________________?

A. Soil porocity

B. Proper growth of plants

C. Alkalinity of soil

D. All

Proper growth of plants

242 - Substance which is found in dried up lakes of Tibet and California is_______________?

A. Tincal

B. Boric acid

C. Calcium carbonate

D. Colemanite

Tincal

243 - Which of the following does not give Borax bead test ?

A. Cu

B. Cr

C. Ni

D. A1

244 - The metal which is used in thermite process because of its activity is____________________?

A. iron

B. copper

C. aluminium

D. zinc

aluminium

245 - Which of the following shows inert pair effect ?

A. boron

B. carbon

C. silicon

D. tin

tin

246 - Tincal is a mineral of___________________?

A. A1

B. Si

C. B

D. C

247 - Which one of the following is not a semiconductor ?

A. Si

B. Ge

C. Se

D. Sn

248 - The process of aluminium extraction is called__________________?

A. Hall process

B. Thermite process

C. Haber process

D. Contact process

Hall process

249 - Aqueous solution of borax above 62°C gives crystals of________________?

A. Na2B4O7.4H2O

B. Na2B4O7.5H2O

C. Na2B4O7.2H2O

D. Na2B4O7.10H2O

Na2B4O7.5H2O

250 - Which of the following is not a use of silicon ?

A. Lubricants

B. Hydraulic brakes

C. Antifreeze

D. Water repellent

Antifreeze

251 - CO2 is gas while SiO2 is solid at room temperature?

A. carbon is non-metal while silicon is semi-metal

B. CO2 is an independent molecule while SiO2 has network covalent structure

C. CO2 forms multiple bond while silicon does not form multiple bonds

D. Silicon has all sigma bonds

CO2 is an independent molecule while SiO2 has network covalent structure

252 - Identify the correct statement regarding CO_______________?

A. it combines with H2O to form carbonic acid

B. it reacts with red blood cells of haemoglobin

C. it is powerful oxidizing agent

D. it is used to prepare aerated drinks

it reacts with red blood cells of haemoglobin

253 - Boric acid cannot be used__________________?

A. As antiseptic in medicine

B. For washing eyes

C. In soda bottles

D. For enamel and glazes

In soda bottles

254 - Which element can form tripositive ion ?

A. Beryllium

B. Carbon

C. Silicon

D. Aluminium

Aluminium

255 - Which of the following is different with respect to physical appearance ?

A. Arsenic

B. Phosphorus

C. Antimony

D. Bismuth

Phosphorus

256 - Compounds of nitrogen and phosphorus are mostly________________?

A. ionic

B. covalent

C. polar

D. all varieties are possible

covalent

257 - SO3 is not absorbed in water directly because__________________?

A. Reaction is exothermic

B. It is insoluble in water

C. Dilute acid is produced

D. All of above

Reaction is exothermic

258 - Which of the following will give phosphoric acid one reaction with water_________________?

A. PCI5

B. P2O3

C. P2O5

D. All of the above

All of the above

259 - Phosphorus is a Greek word and it means_________________?

A. Light bearing

B. Fire

C. Impure

D. Tetrahedral

Light bearing

260 - Allotropic form of phosphorus that is poisonous is___________________?

A. White

B. Red

C. Black

D. Violet

White

261 - Acetic anhydride can be obtained by treating ethyl alcohol with___________________?

A. P2O5

B. H2SO4

C. Both A and B

D. PCI5

Both A and B

262 - Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?

A. Phosphine

B. Phosphorus

C. Water

D. Phosphorus pentoxide

Phosphine

263 - P2O5 is a hygroscopic powder which sublimes at______________?

A. 260 °C

B. 360 °C

C. 360 °C

D. 620 °C

360 °C

264 - Phosphoric acid is a weak acid and its basicity is____________________?

A. 1

B. 3

C. zero

D. 2

265 - All the elements in group VIA are ___________________ in nature?

A. hygroscopic

B. metals

C. polymeric

D. all of above

polymeric

266 - Which allotropic form of phosphorous is the most stable ?

A. White

B. black

C. red

D. Violet

black

267 - The chemical composition of cinnabar is__________________?

A. ZnS

B. PbS

C. HgS

D. FeS

HgS

268 - Oxygen and sulphur resemble in all except________________?

A. Electronic conviguration of valence shell electrons

B. Show allotropy

C. Polymeric

D. Show same oxidation state

Show same oxidation state

269 - Arsenic oxides are removed by passing through_________________?

A. Ferric hydroxide

B. Sodium hydroxide

C. Calcium hydroxide

D. Aluminium hydroxide

Ferric hydroxide

270 - When sulphuric acid is treated with ethanol sulphuric acid behaves like________________?

A. an acid

B. a dehydrating agent

C. an oxidizing agent

D. as sulphonating agent

a dehydrating agent

271 - Which one of the followings possesses melting point below 0°C?

A. Nitrogen

B. Phosphorus

C. Carbon

D. Bismuth

Nitrogen

272 - The most electronegative element among the following is_________________?

A. Sb

B. N

C. As

D. P

273 - Phosphene gas will be produced if phosphorous acid is subjected to___________________?

A. Oxidation

B. Reduction

C. Decomposition

D. Both b & c

Both b & c

274 - Which one of following is not a property of pure quartz ?

A. Coloured solid

B. Brittle

C. Hard

D. All of above

Coloured solid

275 - Which of the following does not contain phosphorus ?

A. Yolk of egg

B. Bone

C. Nerves

D. Steel

Steel

276 - Which one of the following is not the use of graphite ?

A. Lead pencils

B. Abrasive

C. Lubricant

D. Electrode of electrolytic cell

Abrasive

277 - The composition of brown ring in nitrate test is_________________?

A. FeSO4.No

B. FeSO4.No2

C. FeSO4.No3

D. FeSO4.N2o

FeSO4.No

278 - Which one of the following compounds usually smells like garlic ?

A. P2O3

B. P2O5

C. H3PO3

D. All have same smell

P2O3

279 - The element of group VIA which is a non-metal is________________?

A. S

B. Se

C. Te

D. Po

280 - Which of the elements show passivity when treated with conc. HNO3?

A. Fe

B. A

C. Cr

D. All of the above

All of the above

281 - The gas which cannot be dried by conc. H2SO4 ?

A. SO2

B. H2S

C. CO2

D. C2H4

H2S

282 - FeSO4 forms brown ring with________________?

A. N2O3

B. NO2

C. NO

D. N2O

283 - Oxygen does not react with all except_________________?

A. Alkali

B. Acid

C. Water

D. Metals

Metals

284 - In which compound nitrogen has maximum oxidation state____________________?

A. N2O

B. NO2

C. HNO2

D. HNO3

HNO3

285 - Among the halogens the rare element is________________?

A. Fluorine

B. Chlorine

C. Astatine

D. Iodine

Astatine

286 - Vander Waals forces are stronger in_______________?

A. F2

B. Cl2

C. Br2

D. I2

287 - The most powerful oxidizing agent among the halogens is__________________?

A. F2

B. Cl2

C. Br2

D. I2

288 - The halogen which reacts spontaneously with gold (Au) to form Au+3 is ________________?

A. F2

B. Cl2

C. Br2

D. I2

Cl2

289 - The halogen which reacts very slowly with halogen is________________?

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Iodine

290 - The halogen having highest electron affinity is_____________________?

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Chlorine

291 - Bromine can be liberated from KBr solution by the action of _______________?

A. Iodine solution

B. Chlorine

C. NaCl

D. Ki

Chlorine

292 - Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

A. Cl2O

B. ClO2

C. Cl2O6

D. Cl2O7

ClO2

293 - Consider the following reaction- 3Cl2 + 6NaOH ? NaClO3 + 5NaCl + 3H2O This reaction is_______________?

A. Displacement reaction

B. Double displacement reaction

C. Disproportionation reaction

D. Reduction reaction

Disproportionation reaction

294 - Which of the halogen can displace other three elements ?

A. Flourine

B. Chlorine

C. Iodine

D. Bromine

Flourine

295 - The chemical formula of sodium hypochlorite is________________?

A. NaCLO

B. NaClO2

C. NaClO3

D. NaClO4

NaCLO

296 - Bleaching powder is not used for bleaching________________?

A. Cotton

B. Costly fabrics

C. Linen

D. Paper pulb

Costly fabrics

297 - Which of the following is not use of compounds of Fluorine________________?

A. SbF3 is used for manufacture of pottery

B. Sodium fluoroacetate is a rat poison

C. Cu F2 is used in ceramic industry

D. None of the above

None of the above

298 - Photographic plates are coated with a thin film of _________________?

A. AgNO3

B. AgI

C. AgCl

D. AgBr

AgBr

299 - Indicate the correct statement__________________?

A. Cl2 is the strongest oxidizing agent

B. I2 is a volatile solid

C. Br2 is more reactive than Cl2

D. Cl2 is insoluble in water

I2 is a volatile solid

300 - Which one of the following halogens is present in Teflon________________?

A. I2

B. Br2

C. Cl2

D. F2

301 - Which is the paramagnetic oxide of chlorine ?

A. Cl2O7

B. Cl2O6

C. ClO2

D. all

ClO2

302 - The colour of chlorine gas is_______________?

A. pale yellow

B. freenish yellow

C. reddish brown

D. grayish black

freenish yellow

303 - Which of the following statements is incorrect about fluorine_______________?

A. fluorine is restricted to -1 oxidation state

B. fluorine follows octet rule and as well as extended octet rule

C. fluorine has lowest dissociation energy among the halogens

D. both B and C

both B and C

304 - Which one of the following is the weakest acid in water__________________?

A. HF

B. HCI

C. HBr

D. HI

305 - Which of the following represents the correct electronic configuration of VII A group elements in the ground state ?

A. ns2p2

B. ns2p4

C. ns2p5

D. ns2p6

ns2p5

306 - Which is the strongest acid ?

A. HCIO

B. HCIO2

C. HCIO3

D. HCIO4

HCIO4

307 - Bleaching powder is an example of________________?

A. Normal salt

B. Double salt

C. Mixed salt

D. Complex

Mixed salt

308 - Which of the following oxides of iodine is used for quantitative analysis of CO ?

A. I2O4

B. I4O2

C. I2O5

D. All are equally useful

I2O5

309 - Which of the halogen has highest electronegativity ?

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Fluorine

310 - Which of the following statements is incorrect about halogens ?

A. All are non-metals

B. All the halogens have electronic conviguration ns2p5

C. They have high electron attinity and ionization energy

D. All the halogens react with noble gases to form their halides

All the halogens react with noble gases to form their halides

311 - Fluorine can react with_________________?

A. Xe

B. Kr

C. Rn

D. All of the above

All of the above

312 - Which of the following is the weakest reducing agent ?

A. HF

B. HBr

C. HC

D. HI

313 - In which compound of Xenon the oxidation state of Xenon is + 6?

A. XeF4

B. XeOF4

C. XeOF2

D. Na4XeO6

XeOF4

314 - The anhydride of HCIO4 is_________________?

A. Cl2O

B. Cl2O6

C. ClO2

D. Cl2O7

Cl2O7

315 - Alkanes containing a methyl group on main chain at 2nd carbon are called________________?

A. iso-alkane

B. normal-alkane

C. neo-alkane

D. branched-alkane

iso-alkane

316 - Alkanes are also known as________________?

A. saturated hydrocarbon

B. unsaturated hydrocarbon

C. paraffins

D. both A & C

paraffins

317 - Hydrogenolysis results in the formation of________________?

A. alkane

B. alkene

C. alkyne

D. aldehydes

alkane

318 - Removal of CO2 is called_____________________?

A. carboxylation

B. decarboxylation

C. esterification

D. hydroxylation

decarboxylation

319 - Molozonide is unstable and changes into ozonide on_________________?

A. reduction

B. oxidation

C. hydrolysis

D. rearrangement

rearrangement

320 - R-Mg-Br is called___________________?

A. Grignard reagent

B. Metallic alkyl halide

C. Both A & B

D. Alkyl

Both A & B

321 - Which of the following is the most reactive_________________?

A. ethane

B. ethyne

C. ethene

D. benzene

ethene

322 - Introduction of nitro group in a molecule is called___________________?

A. nitration

B. halogenation

C. sulphonation

D. amination

nitration

323 - The gas used in manufacturing of urea fertilizer__________________?

A. C2H6

B. C2H4

C. C2H2

D. CH4

CH4

324 - Which of the following will be acidic_____________?

A. propyne

B. 1-butyne

C. ethyne

D. all of the above

all of the above

325 - Alkenes are produced from dehalogenation of________________?

A. dihalo alkane

B. trihalo alkane

C. vicinal dihalo alkane

D. vicinal trihalo alkane

vicinal dihalo alkane

326 - In unsaturated hydrocarbons electrons favour___________________?

A. less reactivity

B. addition reactions

C. substitution reactions

D. none

addition reactions

327 - Which one is Chloroform_________________?

A. CH2Cl2

B. CH3Cl

C. CHCl3

D. CCl4

CHCl3

328 - Which is used for artificial ripening of fruit ?

A. ethane

B. ethene

C. ethyne

D. methane

ethene

329 - Preparation of vegetable ghee involves_________________?

A. halogenation

B. hydroxylation

C. hydrogenation

D. hydration

hydrogenation

330 - Which is methyl cyanide_________________?

A. CH3NH2

B. CH3NO2

C. CH3CN

D. CH2 = CH - CN

CH3CN

331 - When one hydrogen atom of alkane is removed then it is called________________?

A. alkene

B. alkyl

C. aldehyde

D. saturated hydrocarbon

alkyl

332 - Sabatier Senderns reaction involve _____________ in presence of Ni?

A. Aalkene & H2

B. alkene & O2

C. alkene & N2

D. alkyne & Cl2

Aalkene & H2

333 - Clemmensens reduction infolves the reduction of___________________?

A. ketone

B. aldehyde

C. alkane

D. all of the above

ketone

334 - Soda lime is a mixture of____________________?

A. CaO and NaOH

B. CaO and NaOH

C. NaOH and Na2O

D. Na2O and KOH

CaO and NaOH

335 - Dehalogenation of ethyl tetrahalide will give____________________?

A. ethene

B. ethyne

C. ethyl halide

D. all of the above are possible

ethyne

336 - Upto ___________________ C atoms alkanes are gases?

A. 2

B. 3

C. 4

D. 6

337 - Incomplete oxidation of methane in the limited supply of air forms ?

A. CO2 and H2O

B. CH3OH

C. CO + H2 + C

D. CO + H2O + C

CH3OH

338 - Order of ease of halogenation in alkane is________________?

A. I2>Cl2>Br2>F2

B. F2>Cl2>I2>Br2

C. F2>Cl2>Br2>I2

D. Cl2>F2>Br2>I2

F2>Cl2>Br2>I2

339 - General formula of alkyne is______________?

A. CnH2n + 2

B. CnH2n - 2

C. CnH2n

D. CnH2n + 2

CnH2n - 2

340 - Removal of halogen and hydrogen atom is_________________?

A. halogenation

B. dehalogenation

C. dehydrohalogenation

D. hydrohalogenation

dehydrohalogenation

341 - Reactivity due to pi-electrons is present in_________________?

A. alkane

B. alkene

C. alkyne

D. both B & C

both B & C

342 - Raney nickel is prepared from ______________________ by treating with caustic soda?

A. Ni-Cu alloy

B. Ni-Fe alloy

C. Ni-Al alloy

D. Ni-Mg alloy

Ni-Al alloy

343 - Vinylacetylene combines with HCI to form___________________?

A. polyacetylene

B. benzene

C. chloroprene

D. divinyl acetylene

chloroprene

344 - Which C-X bond has the highest bond energy per mole ?

A. C-F

B. C-C

C. C-Br

D. C-I

C-F

345 - Ethyl chloride with nascent hydrogen produces_________________?

A. methane

B. ethane

C. propane

D. butane

ethane

346 - The number of molecules taking part in the rate determining step is called___________________?

A. Order of reaction

B. Rate of reaction

C. Mole of a reaction

D. Extent of a reaction

Order of reaction

347 - What will be the order of reaction of a reaction whose rate can be expressed as R = K [A] [B] ?

A. Zero

B. One

C. Two

D. Three

Two

348 - What is the order of kinetics in the SN1 mechanism ?

A. Zero

B. First

C. Second

D. Third

First

349 - The rate of E1 reaction depends upon______________________?

A. the concentration of substrate

B. the concentration of nucleophile

C. the concentration of substrate as well as nucleophile

D. base the concentration of substrate as well as nucleophile

the concentration of substrate

350 - Elimination bimolecular reactions involve____________________________?

A. first order kinetics

B. second order kinetics

C. third order kinetics

D. zero order kinetics

second order kinetics

351 - Grignard reagent is reactive due to___________________?

A. the presence of halogen atom

B. the presence of magnesium atom

C. the polarity of C-Mg bond

D. all

the polarity of C-Mg bond

352 - The ether used in Wurtz synthesis is__________________?

A. acidic

B. basic

C. aqueous

D. dry

dry

353 - Which one of the following species is not an electrophile ?

A. NH3

B. Br+

C. H+

D. BF3

NH3

354 - Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone ?

A. primary alcohol

B. secondary alcohol

C. tertiary alcohol

D. dihydric alcohol

tertiary alcohol

355 - Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?

A. formaldehyde

B. acetaldehyde

C. propanone

D. carbondioxide

carbondioxide

356 - In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?

A. two

B. three

C. one

D. four

one

357 - The best method of preparation of alkyl halides is a reaction of alcohol with__________________?

A. Zn / HCI

B. SOCl2 / Pyridine

C. PCI3

D. PCI5

SOCl2 / Pyridine

358 - 50% inversion of configuration of molecules take place in a___________________?

A. E1 - reaction

B. E2 - reaction

C. SN1 - reaction

D. SN2 - reaction

SN1 - reaction

359 - Which alkyl halide has the highest reactivity for a particular alkyl group ?

A. R-F

B. R-C

C. R-Br

D. R-I

R-I

360 - Which one is not a nucleophile ?

A. C2H5O-

B. SCN-

C. NH3

D. H3C+

H3C+

361 - Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?

A. CH3-X

B. (CH3)3 C-CH2 - X

C. (CH3)2 CH - X

D. (CH3)3 C - X

(CH3)2 CH - X

362 - When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?

A. 2 moles of ethane

B. 1 mole of ethane

C. 2 moles of butane

D. 1 mole of butane

1 mole of butane

363 - When CO2 is made to react with ethyl magnesium iodide followed by acid hydrolysis the product formed is _________________?

A. propane

B. propanoic acid

C. propanal

D. propanol

propanoic acid

364 - SN2 reaction can be best carried out with__________________?

A. primary alkyl halide

B. secondary alkyl halide

C. tertiary alkyl halide

D. all

primary alkyl halide

365 - For which mechanisms the first step involved is the same ?

A. E1 + E2

B. E2 + SN2

C. E1 and SN1

D. SN1 and SN2

E1 and SN1

366 - Alkyl halides are considered to be very reactive compounds towards nucleophile because_________________?

A. they have an electrophilic carbon

B. they have an electrophilic carbon & a good leaving group

C. they have an electrophilic carbon & a bad leaving group

D. they have a nucleophilic carbon & a good leaving group

they have an electrophilic carbon & a good leaving group

367 - Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?

A. formaldehyde

B. ketone

C. ethylene epoxide

D. both A & C

both A & C

368 - Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?

A. primary alcohol

B. secondary alcohol

C. tertiary alcohol

D. dihydric alcohol

primary alcohol

369 - Alkyl halides undergo a type of reaction_________________?

A. Nucleophilic substitution

B. Nucleophilic addition

C. Elimination

D. both A & C

both A & C

370 - Which one of the following is termed as benzul alcohol ?

A. C6H5OH

B. C6H5CH(OH)2

C. C6H5CH2OH

D. C6H5COOH

C6H5CH2OH

371 - Which one of the following is also known as tartaric acid ?

A. 2 3-dihydroxy butance 1 4 -dioic acid

B. 2 3 -dihydroxy butanedioic acid

C. 2 3 -dihydroxy butanioc acid

D. 2 2 -dihydroxy butanoic acid

2 3-dihydroxy butance 1 4 -dioic acid

372 - The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?

A. Mother liquor

B. Filterate

C. Extract

D. Molasses

Molasses

373 - The process of fermentation of starch involve many enzymes the sequence of enzymes used are____________________?

A. Diastase-maltase-zymase

B. Zymase-maltase-diastase

C. Maltase-diastase-zymase

D. Diastase-zymase-maltase

Diastase-maltase-zymase

374 - K2Cr2O7/H2SO4 generate____________________?

A. Oxygen

B. Hydrogen

C. Nascent oxygen[O]

D. Nascent hydrogen[H]

Nascent oxygen[O]

375 - Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?

A. Primary alcohol

B. Secondary alcohol

C. Tertiary alcohol

D. All of above

Tertiary alcohol

376 - Which compound is also known by the name of carbolic acid ?

A. C2H2OH

B. H2CO3

C. C6H5OH

D. H3PO3

C6H5OH

377 - Heating phenol with Zn will yield_________________?

A. Benzene

B. Benzoic acid

C. Phenoxide

D. Cyclohexane

Benzene

378 - Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?

A. oxidation

B. elimination

C. condensation polymerization

D. additional polymertization

condensation polymerization

379 - Ethanol can be converted into ethanoic acid by_________________?

A. Hydrogenation

B. Hydration

C. Oxidation

D. Fermentation

Oxidation

380 - Methanol can be obtained from_________________?

A. water gas

B. destructive distillation of wood

C. methane

D. all

all

381 - Absolute alcohol is obtained when rectified spirit is treated with__________________?

A. Ca(OH)2

B. CaCO3

C. CaCl2

D. CaO

CaO

382 - Phenol was isolated by Runge from________________?

A. vegetable oil

B. coaltar

C. wood

D. none of these

coaltar

383 - The hydrogenation of phenol in the presence of Ni and heat gives_________________?

A. cyclohexane

B. n €“ hexane

C. 1 €“ hexanol

D. cyclohexanol

cyclohexanol

384 - Ethanol and methanol can be distinguished by a__________________?

A. Iodoform test

B. Lucas test

C. Benedicts test

D. Tollens test

Iodoform test

385 - Which one of the following alcohol has greater boiling point___________________?

A. ethanol

B. ethylene glaycol

C. glycerol

D. methanol

glycerol

386 - Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce________________?

A. methanol

B. methanol

C. carbonic acid

D. methane

methanol

387 - The formula of starch is__________________?

A. C12H22O11

B. C6H10O5

C. (C6H10O5)n

D. C6H12O6

(C6H10O5)n

388 - The rectified spirit contains________________?

A. 12% alcohol

B. 90% alcohol

C. 95% alcohol

D. 100% alcohol

95% alcohol

389 - The oxidation of isopropyl alcohol will yield___________________?

A. propane

B. Propanol

C. Propanone

D. Propanoic acid

Propanone

390 - The distinction test for primary secondary and tertiary alcohol required to react each of them is_________________?

A. Cone. HCI and anhydrous SOCl2

B. Cone. HCI and anhydrous CaCl2

C. Cone. HCI and anhydrous PCl2

D. Cone. HCI and anhydrous ZnCl2

Cone. HCI and anhydrous ZnCl2

391 - The given dissociation constant (Ka) value 1.3Ã—10-10 is of_________________?

A. Alcohol

B. Acetic acid

C. Water

D. Phenol

Phenol

392 - When phenol is heated with concentrated nitric acid the product is________________?

A. Picric acid

B. o-nitrophenol

C. 1 3 5 -trinitro benzene

D. p-nitrophenol

Picric acid

393 - Which compound shows hydrogen bonding ?

A. C2H6

B. C2H5Cl

C. CH3OCH3

D. C2H5OH

C2H5OH

394 - Methyl alcohol is not used__________________?

A. As a solvent

B. As an antifreezing agent

C. As a substitute for petrol

D. For denaturing of ethyl alcohol

As a substitute for petrol

395 - An alcohol which can be prepared by fermentation is_________________?

A. CH3OH

B. C3H7OH

C. CH3 - CH2 - OH

D. C6H5OH

CH3 - CH2 - OH

396 - When alcohol reacts with phosphorous halides it geive____________________?

A. alkyl halides

B. alkyl amine

C. alkanes

D. alkynes

alkyl halides

397 - Which one of the following compound does not have €“ OH group___________________?

A. ethylene glycol

B. glycerol

C. picric acid

D. ethyl acetate

ethyl acetate

398 - Ethers show functional group isomerism with __________________?

A. aldehydes

B. ketones

C. alcohols

D. carboxylic acid

alcohols

399 - Which one of the following is also known as lactic acid ?

A. 3-Hydroxy propanoic acid

B. 2-Hydroxy propanoic acid

C. 2-hydroxy butanoic acid

D. 3-hydroxy butanoic acid

2-Hydroxy propanoic acid

400 - The easy way of balancing the chemical equation is_________?

A. according to atom-s atomic number.

B. According to atom-s atomic mass.

C. First we balance Metal than non-metal than Hydrogen than Oxygen.

D. None of the above

First we balance Metal than non-metal than Hydrogen than Oxygen.

401 - Which of the following noble gases is not present in atmosphere?

A. Argon

B. Helium

C. Radon

D. Xenon

Radon

402 - Which of the following noble gases is abundant in air?

A. Neon

B. Helium

C. Argon

D. Methane

Argon

403 - Which law states that €œequal volumes of all gases, at the same temperature and pressure, have the same number of molecules?

A. Boyle€™s law

B. Charles€™ law

C. Gay-Lussac€™s law

D. Avogadro€™s law

Avogadro€™s law

404 - Which law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature?

A. Charles- Law

B. Avogadro-s Law

C. Graham-s Law

D. Boyle-s law

Charles- Law

405 - Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

A. Graham-s Law

B. Gay-Lussac-s law

C. Boyle-s law

D. None of these

Graham-s Law

406 - The valency of carbon Atom is __________ ?

A. 1

B. 2

C. 3

D. 4

407 - What is the Chemical formula of Zinc Hydroxide _________ ?

A. Zn(OH)2

B. ZNO2

C. Zn2(OH)3

D. ZnOH

Zn(OH)2

408 - Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?

A. Zeolites

B. Sulphonides

C. Lime

D. Nitrates

Zeolites

409 - Which among the following is not a property of Ionic bond _________?

A. Sharing of electrons

B. Transfer of electrons

C. Losing of electrons

D. Gain of electrons

Sharing of electrons

410 - Sum of protons and neutrons in an atom gives off _________ ?

A. Nucleon numbera

B. Mass number

C. Atomic number

D. Both A and B

Both A and B

411 - What is the molecular weight of Ammonia (NH3) ________ ?

A. 17.031 g/mol

B. 18.031 g/mol

C. 19.031 g/mol

D. 27.033 g/mol

17.031 g/mol

412 - The absolute value of charge on electron was determined by ________ ?

A. J.J.Thomson

B. Chadwick

C. Rutherford

D. Robert Millikan

Robert Millikan

413 - The discovery of neutron became very late because _______ ?

A. It does not carry any charge

B. It does not move

C. It is a fundamental particle

D. It is present in nucleus

It does not carry any charge

414 - What is the molecular formula for Nitric acid ________ ?

A. HNO2

B. HNO3

C. HN2O2

D. H2NO4

HNO3

415 - What is the molecular Weight of Nitric acid (HNO3 ) ?

A. 63.012 g/mol

B. 65.012 g/mol

C. 70.012 g/mol

D. 81.011 g/mol

63.012 g/mol

416 - The Branch of chemistry dealing with brewing and distilling is called _______ ?

A. Zygology

B. Zymology

C. Zymurgy

D. Zootaxy

Zymurgy

417 - The science of fermentation is called _______ ?

A. Zygology

B. Zymology

C. Zymurgy

D. Zootaxy

Zymology

418 - The reciprocal of the coefficent of viscosity is called__________?

A. Density

B. Specific gravity

C. Fluidity

D. Absorbance

Fluidity

419 - For a given mass of a gas at constant temperature, if the value V becomes 3 times, the pressure will becomes__________?

A. 3P

B. P/3

C. 3P/T

D. 6P

P/3

420 - A theoretical link between quantum mechanics and thermodynamics is_________?

A. Electrchemistry

B. Matrix mechanics

C. Statistical thermodynamics

D. Soectroscopic analysis

Statistical thermodynamics

421 - Stainless steel contains___________?

A. Fe+Cr+Ni

B. Fe+Ni+Cu

C. Fe+ Cr+Cu

D. Cu+C+Ni

Fe+Cr+Ni

422 - Carbon in wrought iron is present as_________?

A. Silicon carbide

B. Iron carbide

C. Graphite

D. Partly as iron carbide and partly as graphite

Iron carbide

423 - If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?

A. Annealing

B. Quenching

C. Tempering

D. Nitriding

Annealing

424 - The substance used in cancer therapy is___________?

A. Fe

B. Co

C. Ni

D. Rn

425 - Transition elements, in general, exhibit the following properties, except one. Name that property?

A. Variable oxidation state

B. Natural Radioactivity

C. Tendency to form complexes

D. Formation of alloys

Natural Radioactivity

426 - Which of the following alloys contain(s) Cu and Zn?

A. Bronze

B. Brass

C. Gun-metal

D. Type metal

Brass

427 - Which of the following is soluble in water?

A. AgF

B. AgCl

C. AgBr

D. AgI

AgF

428 - The maximum oxidation shown by manages is_________?

A. 2

B. 4

C. 5

D. 7

429 - Colour in transition metal compounds is attributed to____________?

A. Small sized metal ions

B. Absorption of light in UV region

C. Complete ns sub-shell

D. Incomplete (n-1) d sub-shell

Incomplete (n-1) d sub-shell

430 - Which of the following statements is false about transition metals?

A. They form complexes

B. They show variable valency

C. All transition metal compounds are paramagnetic

D. They form coloured ions

All transition metal compounds are paramagnetic

431 - The by-product of the process of Saponification is___________?

A. Methanol

B. Glycol

C. Glycerol

D. Sodium hydroxide

Glycerol

432 - Polyethylene Glycols are used in the preparation of which type of detergents?

A. Cationic detergents

B. Anionic detergents

C. Non-ionic detergents soap

D. All of above

Non-ionic detergents soap

433 - _____________ surfactants perform well over a wide range water hardness and PH?

A. Anionic

B. Cationic

C. Nonionic

D. Neutral

Nonionic

434 - Commercial detergents contain mainly _____________?

A. RCOON

B. RONa

C. RSNa

D. ROsO3Na Muhammad Ali Kunbhar

RCOON

435 - Which one of the following is caustic potash?

A. NaOH

B. KOH

C. NaCl

D. NaBH4

KOH

436 - The carbon-carbon bond strength is maximum in__________?

A. CH3CH3

B. CH2=CH2

C. Benzene

D. Cyclohexane

CH3CH3

437 - Which of the following effects best explains that o-nitrophenol is insoluble in water?

A. Inductive effect

B. Resonance effect

C. Intermolecular H-bonding

D. Isomeric effect

Intermolecular H-bonding

438 - Which one of the following is most acidic?

A. Phenol

B. P-nitrophenol

C. O-nitrophenol

D. M-nitrophenol

P-nitrophenol

439 - Chlorine Cl when attached to benzene has________?

A. +I and +R effect

B. -1 and +R effect

C. +1 and -R effect

D. -I and -R effect

-1 and +R effect

440 - The criteria for aromaticity is presence of_________?

A. Unsaturations

B. Cyclic structure

C. Presence of 4nÏ€ electrons

D. Presence of 4n+2Ï€ electrons

Presence of 4n+2Ï€ electrons

441 - The bond angle between hybrid orbitals in methane CH3 is___________?

A. 115.5 °

B. 109.5 °

C. 105. 7 °

D. 180 °

109.5 °

442 - The bond length of C=C is___________?

A. 1.20A°

B. 1.34A°

C. 1.54A°

D. 1.68A°

1.68A°

443 - The stationary and mobile phases in paper chromatography are____________?

A. Liquid/liquid

B. Solid/liquid

C. Liquid/solid

D. Liquid/gas

Solid/liquid

444 - Beillstein test is used for________?

A. Cl

B. N2

C. CO2

D. CO

445 - Presence of nitrogen in organic compounds is tested as__________?

A. Nitrogen gas

B. NH3

C. CN-¾

D. NO

CN-¾

446 - The molar mass of an organic acids is determined by____________?

A. Depression of freezing point

B. Volumetric method

C. Victor Meyer-s method

D. Osmosis method

Volumetric method

447 - The IUPAC suffix used for _______ NC group?

A. Cyanide

B. Isocyanides

C. Nitrile

D. Carbylamines

Nitrile

448 - The IUPAC name of ethylene oxide is__________?

A. Epoxy methane

B. Oxoethene

C. Methoxymethane

D. Oxirane

Oxoethene

449 - The IUPAC name of HCONH2 is___________?

A. Methanamide

B. Methanoylamine

C. Aminoethanol

D. Formanide

Methanamide

450 - The compound (CH3)3COH according to IUPAC is known as ___________?

A. Tert-Butanol

B. 2,2-Dimethyl-propanol

C. Tert Alcohol

D. 1,1- Diethylethanol

2,2-Dimethyl-propanol

451 - The PH of the 0.0032 M H2SO4 is__________?

A. 3.2

B. 4

C. 2.198

D. 1

3.2

452 - The PH of the 1.3 Ã— 10-4 NH4Cl is__________?

A. 1.3

B. 4

C. 2.886

D. 3.886

3.886

453 - The PH of milk is __________?

A. 6

B. 6.5

C. 7

D. 7.5

6.5

454 - The PH of Tears is __________?

A. 7

B. 7.4

C. 7.8

D. 8.2

7.4

455 - The PH of pure water at 25°C, kw=1Ã—10-4____________?

A. 0

B. 7

C. 14

D. None of above

456 - When 0.01 moles of NaOH are added to a buffer solution, its PH changes from 4.745 to 4.832. What is its?

A. 0.115

B. 0.9

C. 0.015

D. 0.215

0.115

457 - Alpha particles can be detected by using___________?

A. Gold foils

B. Barium sulphate

C. Zinc sulphide screen

D. Thin Aluminium sheet

Zinc sulphide screen

458 - Which one of the following is the correct sequence according to atomic weights?

A. Fe>Co> Ni

B. Co > Ni > Fe

C. Ni> Co> Fe

D. Co >Fe>Ni

Co > Ni > Fe

459 - Generally the limit of visible spectrum is__________?

A. 1000 to 300 A°

B. 3800 to 7600 A°

C. 8000 to 10,000 A°

D. 12,000 to 15,000 A°

3800 to 7600 A°

460 - If R is the Rydberg constant for hydrogen, then wave-number of the second line in the Lyman series is _________?

A. 2 R

B. R/2

C. 3R/4

D. R/4

3R/4

461 - Magnetic quantum number specifies___________?

A. Size of orbitals

B. Shape of orbitals

C. Orientation of orbitals

D. All of the above

Orientation of orbitals

462 - Azimuthal quantum number defines___________?

A. e/m ratio of an electron

B. Spin of an electron

C. Angular momentum of an electron

D. Magnetic momentum of an electron

Angular momentum of an electron

463 - The energy of one mole of photons of radiation, whose frequency is 4Ã—10 14 Hz, is ___________?

A. 159.6kJ

B. 135.5 KJ

C. 110.5 KJ

D. 80.4 KJ

159.6kJ

464 - Which of the following gases shows more ideal behaviour at 0°C___________?

A. H2

B. CH4

C. He

D. NH3

465 - In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes__________?

A. Double

B. Same

C. Half

D. Four times

Double

466 - Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0°C?

A. 546 °C

B. 546 K

C. 200°C

D. 273 K

546 K

467 - The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?

A. CH4

B. CO2

C. C2H4

D. Xe

CO2

468 - Which of the following haloalkane is hydrolysed by SN1 mechanism?

A. CH3Br

B. CH3CH2Br

C. CH3CH2CH2Br

D. (CH3)3CBr

(CH3)3CBr

469 - Hydrocarbon is formed when Grignard reagent is treated with___________?

A. H2O

B. CH3OH

C. Both a and b

D. None of the above

H2O

470 - Grignard reagent gives carboxylic acid with____________?

A. CO2

B. CH3CHO

C. COC2

D. HCN

CO2

471 - The law of traids is applicable to__________?

A. Li, Be, B

B. F, Cl, Br

C. Cl, Br, I

D. Na, K, Rb

Cl, Br, I

472 - The concept of telluric helix was developed by___________?

A. Lother Meyer

B. A.E de Chancourtois

C. Newland

D. Dobereiner

A.E de Chancourtois

473 - Which group contains elements that exist as monoatomic molecule?

A. 1

B. 2

C. 14

D. 18

474 - The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?

A. S-Block

B. P-Block

C. d-Block

D. f-Block

f-Block

475 - Which one of the following is a bridge element?

A. Be

B. Cl

C. K

D. P

476 - Which of the following aqueous solutions would have the highest boiling point?

A. 0.20 m glucose

B. 0.20 m NaCl

C. 0.15 m CaCl2

D. 0.25 m sucrose

0.15 m CaCl2

477 - The mass of 3.2 moles of ammonia (NH3) gas?

A. 53.4 grams

B. 54.4 grams

C. 55.4 grams

D. 56.4 grams

54.4 grams

478 - How many moles are in 22.2 grams of Calcium chloride, CaCl2?

A. 0.2 moles

B. 0.3 moles

C. 0.4 moles

D. 0.5 moles

0.2 moles

479 - What is the mass percent of silver in silver notrate, AgNO3?

A. 0.645

B. 0.656

C. 0.635

D. 0.615

0.635

480 - A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

A. 74% Fe

B. 75% Fe

C. 77% Fe

D. 78% Fe

78% Fe

481 - A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?

A. C2H6O

B. C6H18O3

C. C6H12O6

D. C2H5O

C6H18O3

482 - A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?

A. C2H4

B. C3H6

C. C4H8

D. C5H10

C4H8

483 - The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

A. 1.8 gram of H2O

B. 12 moles of KMnO4

C. 0.6N H2SO4

D. 4.6 gram of C2H5OH

12 moles of KMnO4

484 - The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?

A. 5

B. 6

C. 7

D. 8

485 - What is the density ofargon gas at a temperature of 30°C and a pressure of 1.05 atm?

A. 1.65 g/L

B. 1.67 g/L

C. 1.68 g/L

D. None of the above

1.68 g/L

486 - The formula C6H5-CO-CH3 represents_______ ?

A. Acetone

B. Acetic acid

C. Acetophenone

D. Phenyl acetate

Acetophenone

487 - Poisonous gas present in the exhaust fumes of a jet plane is__________?

A. Flurocarbon

B. Carbon monoxide

C. Methane

D. C2H2

Carbon monoxide

488 - The O-O linkage is present in__________?

A. H2S2O3

B. H2SO8

C. H2S4O6

D. H2 S2 O6

H2SO8

489 - The number of lone pairs in XeOF4 is_________?

A. O

B. 1

C. 2

D. 3

490 - Argon gas was discovered by_______?

A. Rayleigh

B. Ramsay

C. Lockerey

D. Dalton

Ramsay

491 - SO2 reacts with Cl in sunlight to form__________?

A. Sulphur dioxide

B. Sulphuryl chloride

C. Suphanyl chloride

D. All of the above

Sulphuryl chloride

492 - Oxidation state +1 for phosphorous is found in___________?

A. H3PO3

B. H3PO4

C. H3PO2

D. H2P2O7

H3PO2

493 - Electric bulb filament is made of__________?

A. Copper

B. Aluminum

C. Lead

D. Tungsten

Tungsten

494 - Tetraethyl lead is used as______?

A. Pain Killer

B. Fire Extinguisher

C. Mosquito Repellent

D. Petrol Additive

Petrol Additive

495 - The average salinity of sea water is________?

A. 0.03

B. 0.035

C. 0.025

D. 0.02

0.035

496 - The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:_______?

A. Bromine

B. Fluorine

C. Chlorine

D. Sulphur

Sulphur

497 - Marsh gas is_______?

A. Nitrogen

B. Ethane

C. Methane

D. Hydrogen

Methane

498 - Potassium Permanganate is used for purifying drinking water, because_________?

A. It is a sterilising agent.

B. It dissolves the impurities of water.

C. It is a reducing agent.

D. It is an oxidising agent.

It is an oxidising agent.

499 - Find the PH of a 0.001 M solution of Nitric acid HNO3?

A. 2

B. 3

C. 4

D. 5

500 - Which set of quantum numbers is not allowed?

A. n=2,l=1,m1=0,ms=+1/2

B. n=2,l=1,m1=-1,ms=+1/2

C. n=2,l=0,m1=0,ms=-1/2

D. n=2,l=2,m1=1,ms=-1/2

n=2,l=2,m1=1,ms=-1/2

501 - The purpose of Smelting an ore is to________?

A. Reduce it

B. Oxidize it

C. Obtain an alloy

D. Separate volatile impurities

Reduce it

502 - Which Oxide of Manganese is amphoteric?

A. MnO2

B. Mn2O3

C. Mn2O7

D. MnO

MnO2

503 - A process used for the Concentration of Ore is________?

A. Roasting

B. Forth flotation

C. Electrolysis

D. Distillation

Forth flotation

504 - Which metal is used as a reducing agent in Smelting______?

A. C

B. Zn

C. Al

D. Cu

505 - Parke-s process is used in the extraction of________?

A. Iron

B. Sodium

C. Silver

D. Zinc

Silver

506 - In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?

A. CaO+ SiO2€”€”> CaSiO3

B. 2FeS+3O2€”€”€“> 2Fe+ SO2

C. FeSiO3€”€”€”> FeSiO3

D. Fe2O3+ 3CO€”€”€“> 2Fe+ 3CO2

Fe2O3+ 3CO€”€”€“> 2Fe+ 3CO2

507 - Gypsum is______?

A. CaSO4

B. CaSO4.1/2H2O

C. CaSO4,2H2O

D. CaSO4.3H2O

CaSO4,2H2O

508 - Basicity of orthophosphoric acid is________?

A. 2

B. 3

C. 4

D. 5

509 - Ce58 is a member of__________?

A. S-block

B. P-block

C. d-block

D. f-block

f-block

510 - Electronic Configuration of Calcium (Ca) atom may be written as________?

A. Ne, 4p2

B. Ar, 4s2

C. Ne, 4s2

D. Kr,4p2

Ar, 4s2

511 - A 10 volume solution of H2O2 means_______?

A. 10 grams of H2O2 solution liberate 10 mL of O2 at STO

B. 10 gram equivalents of H2O2 liberates 10 mL of O2 at STP

C. 10 litres of H2O2 liberates 19 mL of O2 at STP

D. 1mL of solution of H2O2 liberates 10 mL of O2 at STP

1mL of solution of H2O2 liberates 10 mL of O2 at STP

512 - The volume strength of 1.5 N H2O2 solution is_______?

A. 4.8

B. 5.2

C. 8.8

D. 8.4

8.4

513 - The structure of H2O2 is_______?

A. Planar

B. Non- polar

C. Spherical

D. Linear

Non- polar

514 - Which of the following element has the maximum electron affinity_____?

A. Cl

B. Br

C. I

D. F

515 - The type of hybridisation of boron in diborane is______?

A. Sp- hybridisation

B. Sp2- hybridisation

C. Sp3- hybridisation

D. Sp3d2- hybridisation

Sp- hybridisation

516 - Which of the following shows electrical conduction_____?

A. Potassium

B. Graphite

C. Diamond

D. Sodium

Graphite

517 - Cassiterite is an ore of_______?

A. Mn

B. Ni

C. Sb

D. Sn

518 - Percentage of lead in lead pencil is________?

A. Zero

B. 20

C. 80

D. 70

Zero

519 - In borax bead test which compound is formed_________?

A. Ortho burate

B. Meta borate

C. Double oxide

D. Tetra borate

Meta borate

520 - Water molecule is________?

A. V-shaped

B. Angular

C. Pyramidal

D. Triangular planer

V-shaped

521 - I3( Tri-iodine) has shape_________?

A. Trigonal bipyramidal

B. Linear

C. Square bipyramidal

D. Both A and C

Linear

522 - BeCl2 has the hybrid orbitaks of type_______?

A. Sp2

B. Sp3

C. Sp

D. dsp2

523 - Molecular orbital Theory is also called_________?

A. Bonding theory

B. Band theory

C. Antibondingtheory

D. Ï€ and Ïƒ bonding theory

Antibondingtheory

524 - Formula of Galena is________?

A. PbS

B. HgS

C. AS2S3

D. FeS2

PbS

525 - Ethylene diammine is ligand________?

A. mono dentate

B. Bi dentate

C. tri dentate

D. Poly dentate

Bi dentate

526 - The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______?

A. 0.065gm

B. 0.65gm

C. 6.5gm

D. 7.5gm

7.5gm

527 - Which of the following compounds is not soluble in HNO3___?

A. CuS

B. CdS

C. PbS

D. AgCl

AgCl

528 - Following are the anions of soap which form Ca and Mg ions which we see as curd in water

A. Sodium hexadecanoate

B. Sodium octadecanoate

C. Sodium pentadecanoate

D. Both A & B

Both A & B

529 - The hybridization of nitrogen atom in pyridine is_______?

A. Sp

B. Sp2

C. Sp3

D. It is not hybridized

Sp2

530 - The IUPAC name of pyridines is__________?

A. Azolo

B. Azine

C. Azolidins

D. Diazine

Azine

531 - How many isomeric aldoses are possible for the molecular formula C6H12O6?

A. 2

B. 4

C. 7

D. 16

532 - The systematic name of sucrose is_______?

A. 1-Î±-D- glucopyranosyl-2-Î²-D-fructopyranoside

B. 11-Î±-D-glucopyranosyl-2-Î²-D-fructofuranoside

C. 1-Î±-D- glucofuranosyl-2-Î±-D- fructopyranoside

D. 1-Î²- D- glucofuranosyl-2-Î±- D- fructofuranoside

1-Î±-D- glucopyranosyl-2-Î²-D-fructopyranoside

533 - Treatment of sucrose with conc. HNO3 gives__________?

A. Nitrosucrose

B. Glucose+ fructose

C. Oxalic acid

D. Laevulinic acid

Nitrosucrose

534 - Alpha (Î±) particles are helium (He) nucleus with a charge of __________ ?

A. e

B. 2e

C. 3e

D. 4e

535 - Elements which emit natural radioactivity are known as __________ ?

A. Radio elements

B. Active elements

C. Radioactive elements

D. Nuclear elements

Radioactive elements

536 - A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?

A. Beta particle

B. Gamma particle

C. Alpha particle

D. Negative particle

Alpha particle

537 - In SI base units, 1 Bq is equal to __________ ?

A. 10 disintegration per second

B. 1.5 disintegration per second

C. 0.01 disintegration per second

D. 1 disintegration per second

1 disintegration per second

538 - Chromatography is used to separate _________ ?

A. Solution

B. Mixtures

C. Molecules

D. Atoms

Mixtures

539 - In a group, atomic radii increase due to successive increase of _________ ?

A. Electronic shells

B. Proton shells

C. Neutron shells

D. Nucleus

Electronic shells

540 - Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?

A. 75.2pm

B. 75.3pm

C. 75.5pm

D. 75.4pm

75.4pm

541 - Quantum numbers are __________ ?

A. Arithmetical values

B. Numerical values

C. Leometric values

D. Logical values

Numerical values

542 - Column of manometer which faces liquid is __________ ?

A. Raised

B. Depressed

C. Compressed

D. Remains same

Depressed

543 - Process used to separate insoluble particles from liquids is ___________ ?

A. Drying

B. Filtration

C. Sieving

D. Extraction

Filtration

544 - Effective volume is usually taken for ____________ ?

A. 2 moles of gas

B. 1 mole of gas

C. 5 moles of gas

D. 3moles of gas

1 mole of gas

545 - In whole Periodic Table which element Is Most Reducing Agent ?

A. Chlorine

B. lithium

C. Helium

D. Neon

lithium

546 - One fathom is equal to:__________?

A. 6 feet

B. 6 meters

C. 60 feet

D. 100 cm

6 feet

547 - What are the metal bearing rocks called?

A. Bitumen

B. Bauxite

C. Metalloids

D. Ores

Ores

548 - Soil pollution is caused by:_________?

A. Aerosol

B. Ozone

C. Acid rain

D. PAN

Acid rain

549 - Radiations are harmful as it:___________?

A. Causes skin cancer

B. Causes anemia

C. Alters body tissue

D. is unstable

Causes skin cancer

550 - The practical problem in Hydrogen production is it:______________?

A. Weight

B. Valency

C. Size

D. Chemical property

Weight

551 - The number of ions produced by [Pt(NH3)]Cl2?

A. 4

B. 2

C. 3

D. 5

552 - Which of the following is solid?

A. Water

B. Stone

C. Both

D. None

Stone

553 - Barret esophagus is good example of__________?

A. Atrophy

B. Dysplasia

C. Metaplasia

D. Hypertrophy E. Hyperplasia

Metaplasia

554 - Which gas is used for artificial ripening of green fruit ?

A. Carbon dioxide

B. Acetylene

C. Ethane

D. Ethylene

Ethylene

555 - Phonon is Quantum of___________?

A. Longitudinal wave

B. Elastic wave

C. Transverse wave

D. Electromagnetic wave

Elastic wave

556 - The concept of ensemble was introduced by____________?

A. Boltzmann

B. Gibbs

C. Carnot

D. Mexwell

Gibbs

557 - Which molecule have stronger London dispersion forces?

A. Hydrogen gas

B. Water

C. Bromine

D. Hydrochloric acid

Water

558 - Urea as a fertilizer contains:____________?

A. 57% N

B. 73% N

C. 46% N

D. 53% N

46% N

559 - The gas dissolved in water that makes it basic is :

A. Ammonia

B. Sulphur dioxide

C. Hydrogen

D. Carbon dioxide

Ammonia

560 - Which of the following acts as promoter for iron in Haber's process?

A. Mn

B. Mo

C. Mg

D. W

561 - One property of ammonia is

A. It is insoluble in water

B. It is a odourless gas

C. It is a yellowish gas

D. Its aqueous solution turns red litmus blue

Its aqueous solution turns red litmus blue

562 - Which one of the following is used for dating very old objects of archaeological importance?

A. Phosphorus-31

B. Tritium

C. Radium

D. Carbon-14

Carbon-14

563 - In which of the following substances all carbon atoms are quaternary in nature ?

A. Graphite

B. Diamond

C. Teflon

D. Napthalene

Diamond

564 - Cooking gas is a mixture of

A. Methane and ethylene

B. Carbon dioxide and oxygen

C. Butane and propane

D. Carbon monoxide and carbon dioxide

Butane and propane

565 - Thermal electricity is generated by using which of these ?

A. Coal only

B. Coal and Natural Gas only

C. Coal, Natural Gas and Petroleum

D. None of these

Coal, Natural Gas and Petroleum

566 - Which of the following is the major constituent of LPG?

A. Methane

B. Ethane

C. Propane

D. Butane

Butane

567 - Which variety of coal contains recognisable traces of the original plant material ?

A. Anthracite

B. Lignite

C. Peat

D. Bitumen

Peat

568 - Which of the following processes is used for the production of Biodiesel ?

A. Transamination

B. Transcription

C. Transesterification

D. Translation

Transesterification

569 - Which of the following is used in welding broken pieces of iron rails and machine parts?

A. Aluminium sulphate

B. Solder

C. Aluminium powder

D. None of the above

Aluminium powder

570 - Of the following commonly used materials, the one that is not an alloy is

A. Steel

B. Brass

C. Bronze

D. Copper

Copper

571 - The manufacture of iron from iron ore involves the process of

A. Oxidation

B. Reduction

C. Fractional distillation

D. Electrolysis

Reduction

572 - The manufacturing of iron from iron ore involves the process of

A. Oxidation

B. Reduction

C. Electrolysis

D. Fractional distillation

Reduction

573 - The important ore of aluminium is

A. Bauxite

B. Cryolite

C. Fluorspar

D. Haematite

Bauxite

574 - The National Chemical Laboratory is situated in

A. New Delhi

B. Bangalore

C. Pune

D. Patna

Pune

575 - Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

A. 0.094467592593

B. 0.094456018519

C. 0.052800925926

D. 0.042372685185

0.052800925926

576 - The mass number of an atom is equal to

A. the number of protons

B. the number of protons and electrons

C. the number of nucleons

D. the number of neutrons

the number of nucleons

577 - The water pollution in river is measured by the dissolved amount of

A. Chlorine

B. Ozone

C. Nitrogen

D. Oxygen

Oxygen

578 - Ultraviolet rays can be used in water treatment as

A. Flocculator

B. Precipitator

C. Hydrolyser

D. Disinfectant

Disinfectant

579 - Tar roads get damaged if there is

A. Stagnation of water on road

B. Heavy traffic

C. No maintenance

D. No sloping

Stagnation of water on road

580 - Aerated water contains

A. SO2

B. NO2

C. H2

D. CO2

CO2

581 - The BOD values of water indicate the

A. Amount of organic debris

B. Amount of oxygen used for biochemical oxidation

C. Amount of oxygen used for biochemical reduction

D. Amount of ozone used for biochemical oxidation

Amount of oxygen used for biochemical oxidation

582 - The most reactive among the halogens is

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Fluorine

583 - Which one element has the lowest electronegativity value

A. Fluorine

B. Chlorine

C. Francium

D. Radium

Francium

584 - Which one element has the highest electronegativity value

A. Lithium

B. Nitrogen

C. Chlorine

D. Fluorine

Fluorine

585 - The element with highest ionization potential is

A. Oxygen

B. Carbon

C. Helium

D. Boron

Helium

586 - Which of the following has no unit?

A. Electronegativity

B. Electron affinity

C. Ionization energy

D. Excitation potential

Electronegativity

587 - Which of the following vegetable oils does not contain essential fatty acids ?

A. Sunflower oil

B. Mustard oil

C. Coconut oil

D. Groundnut oil

Sunflower oil

588 - The example of oligosaccharide is

A. Sucrose

B. Glucose

C. Ribose

D. Cellulose

Sucrose

589 - Number of hydrogen atoms in a Glucose molecule is

A. 6

B. 8

C. 12

D. 14

590 - The residue left after extracting juice from sugarbeet and sugarcane is called

A. Molasses

B. Bagasse

C. Whey

D. Biomass

Bagasse

591 - Nitrogen is an essential constituent of all :

A. Fats

B. Proteins

C. Vitamins

D. Carbohydrates

Proteins

592 - A subshell with l = 2 can take up

A. 3 electron

B. 5 electron

C. 8 electron

D. 10 electron

10 electron

593 - Two electrons in an orbital are differentiated by which of the following ?

A. Magnetic quantum number

B. Spin quantum number

C. Principal quantum number

D. Azimuthal quantum number

Spin quantum number

594 - When cathode rays strike a target of high atomic weight, they give rise to

A. alpha-rays

B. beta and gamma rays

C. X-rays

D. Positive rays

X-rays

595 - How many electrons can be accommodated in d-orbital?

A. 3

B. 6

C. 8

D. 10

596 - The scientist who experimentally proved the existence of positron is

A. Fermi

B. Anderson

C. Bohr

D. Bethe

Anderson

597 - Which of the following phenomenon is considered responsible for Global Warming?

A. Greenhouse effect

B. Fire in coal mines

C. Dry farming

D. MonsoonE. Trade winds

Greenhouse effect

598 - The nucleus of an atom consists of

A. electrons and neutrons

B. electrons and protons

C. protons and neutrons

D. All of the above

protons and neutrons

599 - The number of moles of solute present in 1 kg of a solvent is called its

A. molality

B. molarity

C. normality

D. formality

molality

600 - The most electronegative element among the following is

A. sodium

B. bromine

C. fluorine

D. oxygen

fluorine

Pages

Subject Wise MCQs

Post Wise MCQs

Past Papers

Pages

Chemistry MCQs For Job Test Preparation Mics 2

1 - Cement is a mixture of________________?

2 - Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

3 - Which sequence of steps is correct for the manufacture of cement ?

4 - The composition of mixture of clay and lime stone in the raw for cement material is __________________?

5 - The important function of burning zone in the rotary kilm is __________________?

6 - Which of the following is incorrect statement about nitrogen importance ?

7 - Which of the following is macronutrient ?

8 - Which of the following is the most suitable catalyst for ammonia synthesis ?

9 - Which of the following fertilizers is not useful for paddy rice ?

10 - Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

11 - Argillaceous material does not include________________?

12 - The nutrients which are required in very small amount for the normal growth of plants are called_________________?

13 - Which one of the following is an inorganic fertilizer ?

14 - The potassium present in plant help the plant to___________________?

15 - What is clinker ?

16 - Phosphorus helps in the growth of_________________?

17 - Which one of the following raw material is not present in the cement ?

18 - The sequence of zones in the rotary kiln are as____________________?

19 - The rate of reaction___________________?

20 - The specific rate constant of a first order reaction depends on the________________?

21 - The value of activation energy is primarily determined by_______________?

22 - Spontaneous reactions are_______________?

23 - Unit of rate of reaction is_________________?

24 - Rate of disappearance of reactant is equal to_________________?

25 - For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?

26 - Radiations are absorbed in_______________?

27 - Energy of reactant higher than energy of product favours _______________?

28 - Which of the following will have very high rate of reaction ?

29 - Anything which increases rate of reaction without being involved in the reaction________________?

30 - When catalysts and reactants are in more than one phase it is________________?

31 - Biocatalytical proteins are_________________?

32 - An enzyme has its specificity due to________________?

33 - A substance which increases the reactivity of enzyme is called_________________?

34 - When the reaction completes in more than one steps rate of reaction will be determined by________________?

35 - Energy of activation for backward reaction is less than forward reaction for ___________ reactio?

36 - Which statement is incorrect about catalyst___________________?

37 - Which of the following type of reaction is 3rd order reaction_________________?

38 - The addition of a catalyst to the reaction system__________________?

39 - On increasing the temperature the rate of reaction increases mainly because_________________?

40 - Sum of exponents of molar concentration is called___________________?

41 - In rate expression the concentration of reactants is negative. It shows_______________?

42 - When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in__________________?

43 - Rate of reaction when concentration of reactants are taken as unity is called_________________?

44 - Which order of reaction obeys the relation t1/2 = 1/Ka____________________?

45 - Activated complex is formed due to________________?

46 - Energy required to form transition state is called _________________?

47 - Greater the conc. Of reactant__________________?

48 - The substances that reduces the effectiveness of a catalyst are called ___________________?

49 - Each catalyst has_________________?

50 - A catalyst can not effect__________________?

51 - Co-enzymes are_________________?

52 - End name of enzyme is___________________?

53 - For determining the order of reaction we use__________________?

54 - Elements in the same vertical group of the periodic table have same_______________?

55 - Which set of elements is listed in order of increasing ionization energy ?

56 - Which of the p-block elements are not representative elements ?

57 - Which of the following will not form crystalline structure with opporitely charged ions_________________?

58 - Periodic table provides a basic framework to study elements with respect to their__________________?

59 - Concept of Triads was introduced by_______________?

60 - Elements with similar chemical properties appear in the_________________?

61 - In modern periodic table all the leements are arranged in ascending order of__________________?

62 - Inner transition elements are called _________________?

63 - Non-metals usually form _________________ oxides?

64 - Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?

65 - Which one of the following sets consists of all coinage metals ?

66 - Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?

67 - The atomic radii decreases by increasing atomic number in________________?

68 - An element has electronic conviguration 1s2 2s2 2p2. It belongs to__________________?

69 - Which of the following ion is stable in aqueous solution ?

70 - The atoms of same element having same atomic number but different mass number are called____________________?

71 - Shielding effect across the period_________________?

72 - Higher value of electron affinity means__________________?

73 - Melting points of VII-A group elements down the group ____________________?

74 - Which of the following possesses maximum hydration energy ?

75 - True increasing order of acidity of the oxides of Mn is_________________?