Q.
Assertion : Surface tension decreases with increase in temperature.Reason : On increasing temperature kinetic energy increases and inermolecular forces decreases.
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a
If both assertion and reason are true and reason is a true explanation of assertion.
b
If both assertion and reason are true but reason is not the correct explanation of assertion
c
If assertion is true but reason is false.
d
If both assertion and reason are false.
answer is A.
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Detailed Solution
On increasing the temperature , intermoleculer seperation increases and hence intermoiecular force of attraction deceases .
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