Assertion :Hydrides of $N, O$ and $F$ have lower boiling points than the hydrides of their subsequent group members. Reason: Boiling point depends upon the molecular mass only.

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 D Both Assertion and Reason are incorrect
Apart from molecular mass, boiling point also depends upon inter molecular forces. Due to higher electronegativity of N, O and F, the magnitude of hydrogen bonding in their hydrides will be quite high. Hence their boiling points will be higher than the hyrides of their subsequent group members.

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Similar questions

Assertion (A) Boiling points of alcohols and ethers are high.
Reason (R) They can form intermolecular hydrogen-bonding.
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(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :Hydrides of N, O and F have lower boiling points than the hydrides of their subsequent group members. Reason: Boiling point depends upon the molecular mass only.

Assertion :Hydrides of $N, O$ and $F$ have lower boiling points than the hydrides of their subsequent group members. Reason: Boiling point depends upon the molecular mass only.