WAEC Chemistry 2023 Paper

Concept:At the cathode, reduction occurs because positively charged ions gain electrons.Explanation:During electrolysis, the cathode is the negative electrode.Therefore, it attracts cations, which are positively charged ions.At the cathode, each cation gains electrons to become a neutral atom or molecule.This process is called discharge.For example, $\mathrm{Cu^{2+} + 2e^- \rightarrow Cu}$.Thus, cations are discharged at the cathode.Answer:D. Cations are discharged.