Chemistry - Electrochemistry Question with Solution | TestHub

Anode: The electrode of an electrochemical cell at which oxidation occurs. Cathode: The electrode of an electrochemical cell at which reduction occurs. Electrolysis of molten $\mathrm{NaCl}$ or fused $\mathrm{NaCl}$ Sodium ions migrate to cathode, where electron enter, the melt is reduced to sodium metal $${\mathrm{Na}}^{+}+{\mathrm{e}}^{-}⟶{\mathrm{Cl}}_2+{\mathrm{e}}^{-}$$ Chlorine ions migrate to anode. They give up their electrons to the anode and are oxidized to chlorine gas: $${\mathrm{Cl}}^{-}⟶\frac{1}{2}{\mathrm{Cl}}_2+{\mathrm{e}}^{-}$$ Overall reaction $$2\mathrm{NaCl}⟶2\mathrm{Na}(\mathrm{s})+{\mathrm{Cl}}_2\text{ (g) }$$