Question

Assertion (A): Sulphuric acid when dissolved in water forms a basic salt.

Reason (R): Sulphuric acid ionises in two stages, it is a dibasic acid.

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

(4)

Explanation:

Sulphuric acid does not form a basic salt simply by dissolving in water. In water, it ionises to produce hydrogen ions and sulphate/hydrogen sulphate ions. Therefore, the Assertion (A) is false.

Sulphuric acid is a dibasic acid because one molecule of H₂SO₄ can ionise in two stages and release two replaceable hydrogen ions. Therefore, the Reason (R) is true.

Hence, A is false and R is true.