A 4.0M (concentration) copper(2) chloride solution was electrolysed using carbon electrodes.write the cathode half-reaction
At the anode, chloride ions (Cl-) will undergo oxidation. The half-reaction at the anode would be:
2Cl- (aq) -> Cl2 (g) + 2e-
This reaction represents the oxidation of chloride ions to produce chlorine gas.
The half-reaction at the cathode would be:
Cu2+(aq) + 2e- -> Cu(s)
This reaction represents the reduction of copper(II) ions in solution to form solid copper metal, which would plate out onto the cathode electrode.