The variation of the boiling points of the hydrogen halides is in the order `HFgtHIgtHBrgtHCl`.
What explains the higher boiling point of hydrogen fluoride?

Options

A. The bond energy of `HF` molecules is greater than other hydrogen halides
B. The effect of nuclear shieding is much reduced in fluorine which polarizes the `HF` molecule.
C. The electronegativity of fluorine is much higher than for other elements in the group.
D. There is strong hydrogen bonding between `HF` molecules

Answer

D

Explanation

Due to strong `H`-bonding in `HF` molecule, boiling point is highest for `HF`
`HFgtHIgtHBrgtHI`