Assertion :The angle of contact of a liquid decrease with increase in temperature. Reason: With increase in temperature the surface tension of liquid increase.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Fact: The surface tension of liquid decreases with increase of temperature.
As the temperature of the liquid increases the surface tension and viscosity of liquid decrease which decreases the fluid tendency to hold molecules at higher angle of contact.
So assertion is correct while reason is incorrect.

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