A current of `2.68A` is passed for one hour through an aqeous solution of `CuSO_(4)` using copper electrodes. Select the correct statement (s) from the following

Options

A. increase in mass of cathode=3.174 g
B. decrease in mass of anode=3.174 g
C. no change in masses of electrodes
D. the ratio between the change of masses of cathode and anode is 1:2

Answer

A,C

Explanation

`{:("At Cathode:"Cu^(2+) + 2e^(-) to Cu(S)),("At Anode:"Cu(s) to Cu^(2+)+2e^(-)):}`
Increase in mass of cathode = decrease in mass in Anode =`(2.68xx3600)/96500xx63.5/2=3.174 g`