Chemistry 11 Chapter 10
Electrochemistery
Test 7
1.
If electricity is passed through CuSO
4
solution by using Pt electrode then which of the following possible change occurs?
a) H
2
is deposited at cathode
b) All are possible
c) Colour of solution becomes fed
d) Cu is deposited at anode electrode
2.
Which one of the following element act as inert electrode?
a) Pt
b) Ag
c) Cu
d) None of these
3.
Molten NaCl conducts electricity due to the presence of?
a) Free molecules
b) Free ions
c) Atoms of Na and Cl
d) Free electrons
4.
Which has maximum oxidation number?
a) Mn
b) Cr
c) S
d) N
5.
Strongest the oxidizing agent,greater is the?
a) Redox potential
b) All of these
c) Reduction potential
d) Oxidation potential
6.
Which of the following cell is not rechargeable?
a) Silver oxide cell
b) Ni-Cd cell
c) Lead storage battery
d) Fuel cell
7.
In an electrolytic cell current flows?
a) From cathode to anode in outer circuit
b) From cathode to anode inside the cell
c) From anode to cathode outside the cell
d) From anode to cathode inside the cell
8.
The degree of association of week electrolyte increase as?
a) Pressure increase
b) Dilution increases
c) None of these
d) Dilution decrease
9.
Electricity in voltaic cell is produced due to?
a) Neutralization
b) b+c
c) Reduction
d) Oxidation
10.
In a galvanic cell?
a) Electrical energy is converted into chemical energy
b) Electrical energy is converted into heat
c) Chemical energy in converted into electricity
d) Chemical energy is converted into heat
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