If equal quantities of electricity are passed through three voltameter containing `FeSO_(4), Fe_(2)(SO_(4))_(3) and Fe(NO_(3))_(3)`, then which of the following is not true?

Options

A. The amount of iron deposited in `FeSO_(4)` and `Fe_(2)(SO_(4))_(3)` are equal
B. The amount of iron deposited in `FeSO_(4)` is 1.5 times of the amount of iron deposited in `Fe(NO_(3))_(3)`.
C. the amount of rion deposited in `Fe_(2)(SO_(4))_(3)` and `Fe(NO_(3))_(3)` are equal
D. The same amount of gas is evolved in all three cases at the anode.

Answer

B, C, D

Explanation

`Fe^(2+)+2e^(-)toFe` [in `FeSO_(4)],Fe^(3+)3e^(-)toFe["in " Fe_(2)(SO_(4))_(2)]`
`Fe^(3+)+3e^(-)toFe["in "Fe(NO_(3))_(3)]`
Amount of Fe deposited in `FeSO_(4)=(Q)/(96500)xx(56)/(2)`
Amount of Fe deposited in `Fe_(2)(SO_(4))_(3)=(Q)/(96500)xx(56)/(3)`