Question

Coulomb is the quantity of current defined as:

• A. one ampere of current passing for 1 sec
• B. one which deposits 0.001118 g of Ag on cathode
• C. one which deposits electrochemical equivalence of metal
• D. 1/2 ampere current for two second

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A one ampere of current passing for 1 sec
B one which deposits 0.001118 g of Ag on cathode
C one which deposits electrochemical equivalence of metal
D 1/2 ampere current for two second

A coulomb of electricity is the charge that passes a given point when 1 A current flows for 1 s.

Thus, $1/2A$ current for 2 seconds also represents a coulomb of electricity.

A coulomb of electricity deposits electrochemical equivalent of a metal.

For silver it corresponds to $0.001118g$ . It is deposited at cathode.

Thus, all the options are correct.