Identify the correct representation of reaction occurring during chloralkali process

(A) 2NaCl(l) + 2H 2 O(l) → 2NaOH(l) + Cl 2 (g) + H 2 (g)

(B) 2NaCl(aq) + 2H 2 O(aq) → 2NaOH(aq) + Cl 2 (g) + H 2 (g)

(C) 2NaCl(aq) + 2H 2 O(l) → 2NaOH(aq) + Cl 2 (aq) + H 2 (aq)

(D) 2NaCl (aq) + 2H 2 O (l) → 2NaOH (aq) + Cl 2 (g) + H 2 (g)



Chlor-Alkali process is a method for the industrial production of sodium hydroxide and chlorine by the electrolysis of sodium chloride solution.


Since the electrolysis is carried out in aqueous medium, NaCl is taken in aqueous medium. Cl 2 and H 2 gas are evolved and the NaOH produced during the reaction is also in aqueous medium.


Hence, the correct representation of the reaction is:  

Chor-Alkali process reaction - Teachoo.jpg

So, the correct option (d)

  1. Class 10
  2. Chapter 2 Class 10 - Acids, Bases and Salts (Term 1)

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo