Question

According to Faraday's law of electrolysis, the amount of decomposition is proportional to:

• A. 1/time for which current passes
• B. electrochemical equivalent of the substance
• C. 1/current
• D. 1/electrochemical equivalent

Answer 1

Answer: (B)

electrochemical equivalent of the substance

The amount of decomposition (i.e., mass of the substance liberated during electrolysis) is proportional to electro chemical equivalent of the substance.

Using the relation $[m=Z\ast i\ast t]$
where Z is its electrochemical equivalent , i is current , t is time and m is the mass deposited or liberated .
One can say that the amount of mass deposited will be proportional to the electrochemical equivalent of the substance.