Question

Assertion (A): Sulphuric acid acts as an oxidising agent.

Reason (R): Sulphuric acid produces hydrogen on reacting with zinc.

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

(2)

Explanation:

Concentrated sulphuric acid acts as a strong oxidising agent and oxidises many metals and non-metals. Therefore, the Assertion (A) is true.

Dilute sulphuric acid reacts with zinc to produce hydrogen gas. Therefore, the Reason (R) is also true.

However, the Reason describes the reaction of dilute sulphuric acid with zinc and does not explain the oxidising action of concentrated sulphuric acid.

Hence, both A and R are true, but R is not the correct explanation of A.