Boiling points of the hydrogen halidesA. Increase regularly in order of relative molecular massB. Decrease sharply from HF to HCl and then increasesC. Decrease regularly in order of relative molecular massD. Increase sharply from HF to HCI and then decrease regularly with increase of relative molecular mass.

Boiling points of the hydrogen halidesA. Increase regularly in order o

1.	Boiling points of the hydrogen halidesA. Increase regularly in order of relative molecular massB. Decrease sharply from HF to HCl and then increasesC. Decrease regularly in order of relative molecular massD. Increase sharply from HF to HCI and then decrease regularly with increase of relative molecular mass.
Answer» Correct Answer - 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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