A current of 2.68 A is passed for 1.0 hr through an aqueous solution of`CuSO_(4)` using copper electrodes. Which of the following statement(s) is (are) correct?

Options

A. increases in mass of cathode `= 3.174g`
B. decreases in mass of anode `= 3.174g`
C. no change in masses of electrode
D. the ratio between the change of masses of cathode and anode is `1:2`

Answer

A, B

Explanation

`Cd +2AgCI(s) rarr CuCI_(2)(aq) +Ag(s)`
`W = (E)/(96500) xx I xx t = (63.5 xx 2.68 xx 3600)/(2 xx 96500) = 3.174g`