Question

Electrochemical equivalent of a substance is $0.0006735g^{-1}$. C Its equivalent weight is:

• A. 25
• B. 65
• C. 40
• D. 27

Answer 1

Answer: (B)

The weight of a substance deposited by $1C$ is termed as electrochemical equivalent.

$W=ZIt$

$W=ZQ,I=1A,T=1sec$ i.e., $Q=1C$

1C deposits weight $=0.0006735g$

$96500C$ deposits weight

$=0.0006735\times 96500=65$

1F (i.e. $93500C$ ) deposits weight equal to its equivalent weight.