Question

Assertion (A): Ammonia and its compounds do not occur in minerals.

Reason (R): Ammonia is not soluble in water.

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:

Ammonia and its compounds generally do not occur naturally as minerals because ammonia is volatile and ammonium compounds are usually quite soluble in water. Therefore, the Assertion (A) is true.

Ammonia is actually highly soluble in water, so the Reason (R) is false.

Hence, A is true and R is false.