CSEC Chemistry · January 2017 · Paper 1 · Question Q31

During the electrolysis of aqueous copper(II) sulfate solution using inert electrodes, the ions migrating to the cathode are

1. (A)\text{Cu}^{2+}\text{ (aq)} and \text{H}^+\text{ (aq)}
2. (B)\text{H}^+\text{ (aq)} and \text{OH}^-\text{ (aq)}
3. (C)\text{SO}_4^{2-}\text{ (aq)} and \text{OH}^-\text{ (aq)}
4. (D)\text{Cu}^{2+}\text{ (aq)} and \text{SO}_4^{2-}\text{ (aq)}