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Assertion : Melting and boiling points o...

Assertion : Melting and boiling points of `D_(2)O` are higher than those of ordinary `H_(2)O`.
Reason : `D_(2)O` has lesser degree of association and lower molecular mass than `H_(2)O`.

A

If both assertion and reason are true and reason is the correct 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.

Text Solution

Verified by Experts

The correct Answer is:
C
`D_(2)O` has higher molecular mass and greater degree of association than `H_(2)O` and thus, has higher melting and boiling points.
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