First slide

Faraday's Laws

Question

One Faraday of electricity will liberate 1 gram atom of the metal from the solution of

Easy

A

CuCl₂
B

CuSO₄
C

AgNO₃
D

AuCl₃

Solution

$Number\,\,of\,\,Faradays = number\,\,of\,\,equivalents$

$= \frac{{mass}}{{GEW}} = \frac{{mass \times valency}}{{GAW}} = gm - atom \times Valency$

1 gm-atom is deposited by 1 Faraday means valency of metal must be 1. In AgNO₃charge on Ag is 1

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