When one faraday current is passed which of the following would deposit 1 g atomic weight of the metal

Options

A. `NaCI`
B. `BaCI_(2)`
C. `AICI_(3)`
D. `CuSO_(4)`

Answer

B

Explanation

1 g atomic weight of metal will be deposited by one faraday of current when metal has one unit positive charge
a `NacI or Na^()CI^(-)`
b `BaCI_(2) or Ba^(2+) 2CI^(-)`
c `AICI_(3) or AI^(3+) 3cI^(-)`
d `CuSO_(4) or Cu^(2+) SO_(4)^(2-)`
`therefore` 1 g atomic weight of `Na^(+)` is deposited by 1 F of current