For example, if we use molten NaCl, the products of electrolysis are
sodium metal and Cl2 gas Here we have only one cation (Na+) which is
reduced at the cathode (Na+ + e– ® Na) and one anion (Cl–) which is
oxidised at the anode (Cl– ® ½Cl2 + e– ) During the electrolysis of aqueous
sodium chloride solution, the products are NaOH, Cl2 and H2 In this
case besides Na+ and Cl– ions we also have H+ and OH– ions along with
the solvent molecules, H2O