Question

Assertion: A mixture of ammonium chloride and sand can be separated using sublimation.
Reason: Ammonium chloride on heating converts from solid to gas directly.

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

Answer 1

The correct option is A Both assertion and reason are correct and reason is the correct explanation for assertion.

Sublimation is the process of converting solid into gas directly. On heating, ammonium chloride converts into vapour leaving behind the non-volatile component, salt. Hence the mixture can be separated.