If same amount of electricity is passed through aqueous solutions of `AgNO_(3)` and `CuSO_(4)` and the number of Ag and Cu atoms deposited are'x' and 'y' respectively . Then

Options

A. `x = y`
B. `x lt y`
C. `y = 2x`
D. `x = 2y`

Answer

D

Explanation

`Ag^(+) + e^(-) to Ag , Cu^(2+) + 2 e^(-) to Cu` .
Thus , same quantity of electricity will deposit double the no. of Ag atoms than Cu, i.e., x = 2y .