Electrode potential of Zn is__________________?

A. Oxidation
B. Reduction
C. Oxidation-reduction
D. Depends on the nature of the coupled electrode

Voltaic cell is a_________________?

A. Irreversible cell
B. Reversible cell
C. Alkaline cell
D. All of the above

Percentage of sulfuric acid in lead accumulator is__________________?

A. 40%
B. 25%
C. 30%
D. 50%

The half cells are interconnected through________________?

A. Wire
B. Salt bridge
C. Electric circuit
D. No connection exists

Which of the following element act as inert electrode________________?

Ccu
B. Ag
C. Pt
D. None

Stronger the oxidizing agent greater is the________________?

A. Oxidation potential
B. Reduction potential
C. Redox potential
D. Emf of cell

Which of the following cell is not rechargeable ?

A. Lead storage battery
B. Silver oxide cell
C. Fuel cell
D. Ni-cd cell

Which of the following is true in the case of Zn-Cu cell ?

A. The flow of electrons takes place from copper to zinc
B. E0red of copper electrode is less than that of zinc electrode
C. Zinc acts as an anode and copper as cathode
D. All are correct

Greater value of standard reduction potential smaller will be tendency______________?

A. To form positive ions
B. To form negative ions
C. Gain electrons
D. All are possible

Lead accumulators are_______________?

A. Secondary cell
B. Primary cell
C. Voltaic cell
D. Both a & c