Same amount of electricity is passed through aqueous solutions of `AgNO_3 and CuSO_4` . The number of Ag and Cu atoms deposited are x and y respectively. The correct relationship between x and y is

Options

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

Answer

B

Explanation

When same amount of electricity is passed through `AgNO_(3) and CuSO_(4)` aqueous solutions.
The relations between `Ag^(+) and Cu^(+)` ion is as follows,
` 1 mol of Ag ^(+) = (1)/(2) mol of Cu^(2+)`
( `:. cu^(2)` required 1 moles of electron for each mole of `Cu^(2+)` ion )
Thus for,
x .- moles of `Ag^(+)` , we get `(y)/(2) ` moles of `Cu^(2+)` ions .
Hence, x= 2y .