An aqueous solution of sodium chloride on electrolysis gives H(g), Cl(g) and NaOH according to the reaction: 2Cl(aq) + 2HO 2OH(aq) + H(g) + Cl(g) A direct current of 25 ampere with a current efficiency 62% is passed through 20 L of NaCl solution (20% by mass). Write down the reactions taking place at the anode and cathode. How long will it take to produce 1 kg of Cl? What will be the molarity of the solution with respect to hydroxide ion? Assume no loss due to evaporation.