When an aqueous solution of copper sulphate is electrolysed using copper electrodes the reaction at the anode is represented by

Options

A. `H^(+) + e^(-) to H`
B. `Cu^(2+) + 2e^(-) to Cu`
C. `SO_4^(2-)(aq) to SO_4 + 2e^(-)`
D. `Cu(s) to Cu^(2+)(aq)+2e^(-)`

Answer

D