Question

Assertion: A liquid-gas mixture can be separated by boiling.

Reason: The solubility of a gas in a liquid decreases with increase in temperature.

• A. Assertion and reason are correct, but reason is not the correct explanation of assertion.
• B. Assertion is correct, but reason is incorrect.
• C. Assertion and reason are correct, and reason is the correct explanation of assertion.
• D. Assertion is incorrect, but reason is correct.

Answer 1

The correct option is D

Assertion is incorrect, but reason is correct.

The solubility of a gas in a liquid decreases with increase in temperature. Separation of a gas from the liquid is not possible by boiling because the liquid's vapour will also be present with the gas collected (after separation). Therefore, the assertion is incorrect.