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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
B
The effect of nuclear shielding is much reduced in fluorine which polarises 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
Detailed Solution
HF molecules are associated through strong hydrogen bonding, so HF has the highest boiling point: HF > HI > HBr > HCl.