question_answer

Assertion             :               At critical temperature, surface tension of a liquid becomes zero. Reason         :           At this temperature, intermolecular forces for liquids and gases become equal. Liquid can expand without any restriction.

A) If both assertion and reason are true and the reason is the correct explanation of the assertion.

B) If both assertion and reason are true but reason is not the correct explanation of the assertion.

C) If assertion is true but reason is false.

D) If the assertion and reason both are false.

E) If assertion is false but reason is true.