Which of the following is(are) true when HCl (g) is passed through water?

(i) It does not ionise in the solution as it is a covalent compound.

(ii) It ionises in the solution

(iii) It gives both hydrogen and hydroxyl ion in the solution

(iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule

(A) (i) only  

(B) (iii) only

(C) (ii) and (iv)

(D) (iii) and (iv)

 

Answer

Although HCl is a covalent compound, it is an electrolyte and ionizes in aqueous solution to give hydronium and chloride ion as follows:

Reaction of HCl with Water - Teachoo.jpg

So, the correct option is (c) - (ii) and (iv)

  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