Assertion `(A):` 1 Faraday of electricity deposits `1 g` equivalent of `Ag , Cu` or `Al`.
Reason `(R): 1 mole` of electrons are required to reduce `1 mol e of Ag^(o+)` or `(1)/(2) mol e of Cu^(2+)` or `(1)/(3) `mole of `Al^(3+)` ions.

Options

A. If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`.
B. If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`.
C. If `(A)` is correct, but `(R)` is incorrect.
D. If `(A)` is incorrect, `(R)` is correct.

Answer

B

Explanation

Both `(A)` and `(R)` are correct. But `(R)` is independent of `(A),i.e.,` not explanation of `(A)` .
`1F-=1 Eq` of any compound.
`i.e.,`
`1F=1Eq of Ag^(o+) -= 1 Eq of Cu^(2+) -=1 Eq of Al^(3+)`
`=(1)/(1) mol of Ag^(o+)=(1)/(2) mol of Cu^(2+)=(1)/(3) mol e of Al^(3+)`