Chemistry - Electrochemistry Question with Solution | TestHub

When molten or fused NaCl is electrolysed, it yields metallic sodium and gaseous chlorine. Industrially, this process is called Down's process. Reactions occurring in Down's cell are as follows $\begin{array}{rlr}\mathrm{NaCl}(l)& ⟶{\mathrm{Na}}^{+}+{\mathrm{Cl}}^{-}& \\ {\mathrm{Na}}^{+}+e^{-}& ⟶\mathrm{Na}& \text{ (at cathode) }\\ {\mathrm{Cl}}^{-}& ⟶\frac{1}{2}{\mathrm{Cl}}_2+e^{-}\text{ (at anode) }& \end{array}$