Question

Assertion (A): Catalytic oxidation of Ammonia does not require any external heat in Oswald process.

Reason (R): Catalytic oxidation of ammonia is an endothermic process.

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:

In the Ostwald process, the catalytic oxidation of ammonia is exothermic. Once the reaction starts at the required temperature, the heat released by the reaction helps sustain it, so continuous external heating is not required. Therefore, the Assertion (A) is true.

The Reason (R) is false because catalytic oxidation of ammonia is not endothermic; it is exothermic.

Hence, A is true and R is false.