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Boiling points of the hydrogen halides...

Boiling points of the hydrogen halides

A

Increase regularly in order of relative molecular mass

B

Decrease sharply from HF to HCl and then increases

C

Decrease regularly in order of relative molecular mass

D

Increase sharply from HF to HCI and then decrease regularly with increase of relative molecular mass.

Text Solution

Verified by Experts

The correct Answer is:
B
The increasing order of boiling point is HCl lt HBrlt HI lt HF
Boiling point increases with increase in atomic weight of halogen due to increase in the van der Waals forces. However, boiling point of HF is highest due to presence of hydrogen bonding.
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