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Which has the highest heat of vaporisati...

Which has the highest heat of vaporisation?

A

HF

B

HBr

C

HCl

D

Hl

Text Solution

Verified by Experts

The correct Answer is:
A
HF forms strong intermolecular H bonds and other hydrogen halides do not form intermolecular H-bonds. Vander Waals' forces increases from `HCl` to `Hl`.
Consequently HF has highest heat of vaporisation.
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