1 - ________________ is study about energy of a chemical system
thermochemistry
2 - Anything which depends upon initial and final state of a system is
state function
3 - Apparent charge on atom in molecule is
oxidation number
4 - Capacity of one lead accumulator cell is
2 volts
5 - Chemical used in salt bridge is
KCI
6 - Decrease in oxidation number is called
reduction
7 - Density of H2SO4 in lead accumulator is
25g/cm3
8 - E0red of an element cab be calculated by comparing it with
SHE
9 - Electricity in voltaic cell is produced due to
both b & c
10 - Electrode potential of Zn is
depends on the nature of the coupled electrode
11 - Enthalpy change can be
both a and b
12 - For the measurement of standard electrode potential Zn is dipped in
1 M ZnSO4 solution
13 - Greater value of standard reduction potential greater will be tendency
both b and c
14 - Greater value of standard reduction potential smaller will be tendency
to form positive ions
15 - H2 gas in SHE is filled at pressure of
760mm of Hg
16 - If electricity is passed through CuSO4 solution by using Pt electrode then which of the following possible change occurs?
Colour of the solution becomes fade
17 - If internal energy of the system is increased
All
18 - In a galvanic cell
Chemical energy is converted into electricity
19 - In alkaline battery the anode is made up of
Zn
20 - In an electrolytic cell current flows ?
From anode to cathode outside the cell
21 - In electrolytic cell electricity carries
non-wpontaneous reaction
22 - In electrolytic solution conductance of electricity is due to
ions
23 - In Galvanic cell electrons flow from anode to cathode through
external electric circuit
24 - In galvanic cell Zn acts as an anode so its value of standard reduction potential in comparison to coupled electrode would be
greater
25 - In K2Cr2O7 the oxidation number of chromium is
6
26 - Lead accumulators are
both a & c
27 - List of elements based on hydrogen scale is called
electrochemical series
28 - Molten NaCl conducts electricity due to the presence of
Free ions
29 - Most of thermodynamic parameters are
state functions
30 - Percentage of sulphuric acid in lead accumulator is
0.3
31 - Potential of SHE is considered as
zero
32 - Reaction at anode is called
oxidation
33 - Right half cell contains __________ electrode
Cu
34 - Salt bridge transfers
ions
35 - Secondary cell is
rechargeable
36 - Stronger the oxidizing agent greater is the
Reduction potential
37 - Temperature for the measurement of standard electrode potential is
298K
38 - The degree of dissociation of week electrolyte increases as
Dilution increases
39 - The element that act as anode always have _______ position in electrochemical cell
higher
40 - The environment in which a system is studied is
surrounding
41 - The half cells are interconnected through
salt bridge
42 - The rate of reaction
Decreases as the reaction proceeds
43 - The reduction potential Zn is
-0.76
44 - The strength of solution of an element whose electrode potential is to be measured is
1M
45 - Total energy of a system is
P.E + K.E
46 - Two fundamental ways to transfer energy are
heat and work
47 - Unit of heat in SI system is
J
48 - Voltaic cell can be recharged by
by replacing external circuit with external source of electricity
49 - Voltaic cell is a
all of the above
50 - Which has maximum oxidation number?
Mn
51 - Which of the following cell is not rechargeable?
Silver oxide cell
52 - Which of the following element act as inert electrode
Pt
53 - Which of the following is true in the case of Zn-Cu cell?
Zinc acts as an anode and copper as cathode
54 - Which one is not state function
Work
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