Chemistry 11 Chapter 10
Electrochemistery
Test 8
1.
In electrolytic solution conductance of electricity is due to?
a) Electrodes
b) Ions
c) Free electrons
d) Metals
2.
In electrolytic cell electricity is carried out by?
a) Non-spontaneous reaction
b) Neutralization
c) Spontaneous reaction
d) None of these
3.
In electrolytic cell,electrons flows from anode to cathode through?
a) Electric circuit
b) Salt bridge
c) No current flows
d) Movement of ions
4.
Right half cell contains electrode?
a) Zn
b) Cu
c) Fe
d) Al
5.
Salt bridge transfers?
a) Anions
b) Electrons
c) Solvent particle
d) Current
6.
Voltic cell can be recharged by?
a) Adding of fresh solution
b) Removal of solution
c) Heating it
d) Replacing external circuit with external source of electricity
7.
Reaction at anode is called?
a) Decomposition
b) Oxidation
c) Reduction
d) Redox
8.
Zinc electrode is dipped in half cell reaction in solution of?
a) 1.5 MZnSO
4
b) None of these
c) 1 MZnSO
4
d) 1 MZnO
9.
Cathode provides electrons to?
a) +ve ion
b) -ve ion
c) Does not provide any electron
d) Neutral atom
10.
Decrease in oxidation number is called?
a) Reduction
b) All of these
c) Oxidation
d) Redox
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