(c) The following reactions occur at the anode during the electrolysis of aqueous sodium chloride solution : $\text{Cl}^- (\text{aq}) \longrightarrow \frac{1}{2} \text{Cl}_2 \, (g) + \text{e}^- \quad E^\circ_{(\text{cell})} = 1\cdot36 \text{ V} \quad (\text{I})$ $2\text{H}_2\text{O} \, (l) \longrightarrow \text{O}_2 \, (g) + 4\text{H}^+ (\text{aq}) + 4\text{e}^- \quad E^\circ_{(\text{cell})} = 1\cdot23 \text{ V} \quad (\text{II})$ Which reaction is feasible at the anode and why ?