Question

What current is to be passed for 0.25 s for deposition of a certain weight of metal is equal to its electro-chemical equivalent ?

• A. 4 A
• B. 100 A
• C. 200 A
• D. 2 A

Answer 1

Answer: (A)

4 A

Answer 2

Electrochemical equivalent is the weight deposited by $1$ coulomb $Q = I \times t$ or $1 = I \times 0.25$ or $I = 4\, A$.