Question

Assertion (A): Haber’s process is used to manufacture ammonia.

Reason (R): The catalyst used in this process is vanadium oxide or platinum.

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

(3)

Explanation:

Haber’s process is used for the industrial manufacture of ammonia from nitrogen and hydrogen. Therefore, the Assertion (A) is true.

The catalyst used in Haber’s process is finely divided iron, usually with promoters such as molybdenum. Vanadium oxide or platinum is not used as the catalyst in Haber’s process. Therefore, the Reason (R) is false.

Hence, A is true and R is false.