Which of the following are present in a dilute aqueous solution of hydrochloric acid?

(A) H 3 O +  + Cl

(B) H 3 O + OH

(C) Cl + OH

(D) unionised HCl



  • Since HCl is an electrolyte , it dissociates into ions when added to water. 
  • Therefore, in dilute aqueous solution, HCl exists as H 3 O + and Cl - .

The ionisation of HCl in water is given below:

Reaction of HCl with Water - Teachoo.jpg

So, the correct option is (a) H 3 O +  + Cl

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

About the Author

CA Maninder Singh's photo - Founder at Teachoo
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