Question

Assertion (A): HCl gas fumes in moist air.

Reason (R): HCI gas is highly 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

(1)

Explanation:

HCl gas fumes in moist air because it dissolves readily in the moisture present in the air and forms tiny droplets of hydrochloric acid. Therefore, the Assertion (A) is true.

HCl gas is highly soluble in water, which is why it readily dissolves in atmospheric moisture and produces fumes. Therefore, the Reason (R) is true and correctly explains the Assertion.

Hence, both A and R are true, and R is the correct explanation of A.