Question

Assertion (A): When ammonium chloride is dissolved in water, the solution so formed turns blue litmus red.

Reason (R): Ammonium chloride is the salt of a weak base and a strong acid. So, the solution formed on hydrolysis is acidic in nature.

Options

• Both A and R are true and R is correct explanation of the assertion.

• Both A and R are true but R is not the correct explanation of the assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is correct explanation of the assertion.

Explanation:

The assertion is true because an aqueous solution of ammonium chloride (NH₄Cl) is acidic, meaning it turns blue litmus paper red. The reason is also correct and explains the assertion, as NH₄Cl is a salt formed from a weak base (NH₄OH) and a strong acid (HCl). Upon hydrolysis in water, the salt produces excess hydrogen ions (H⁺), giving the solution its characteristic acidic properties.