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Question

The variation of the boiling points of the hydrogen halides is in the order HF>HI>HBr>HCl. What explains the higher boiling point of hydrogen fluoride?

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