Question

Assertion (A): KNO₃ and conc. H₂SO₄ are the reactants for the preparation of nitric acid.

Reason (R): Conc. H₂SO₄ being a non volatile acid is used in the preparation of volatile acids.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Options

• (1)

• (2)

• (3)

• (4)

Answer 1

(1)

Explanation:

Potassium nitrate KNO₃ and concentrated sulphuric acid H₂SO⁴ are used in the laboratory preparation of nitric acid. Therefore, the Assertion (A) is true.

Concentrated sulphuric acid is a non-volatile acid and can displace a more volatile acid like nitric acid from its salt. Therefore, the Reason (R) is true and correctly explains the Assertion.

Hence, both A and R are true, and R is the correct explanation of A.