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Get Answers to all your Questions
The variation of the boiling point of the hydrogen halides is in the order .
What explains the higher boiling point of hydrogen fluoride?
- Option 1)
The electronegativity of fluourine is much higher than for other elements in the group
- Option 2)
There is strong hydrogen bonding between HF molecules
- Option 3)
The bond energy of HF molecules is greater than in other hydrogen halides.
- Option 4)
The effect of nuclear shielding is much reduced in fluorine which polarises the HF molecule.
Answers (1)
As learnt in
Boiling point of Hydride -
HF>HI>HBr>HCl
- wherein
Boiling point of HF is due to H-Bond
Order of boiling point : HF > HI > HBr > HCl
HF has highest boiling point because of strong hydrogen bonding.
Option 1)
The electronegativity of fluourine is much higher than for other elements in the group
This option is incorrect
Option 2)
There is strong hydrogen bonding between HF molecules
This option is correct
Option 3)
The bond energy of HF molecules is greater than in other hydrogen halides.
This option is incorrect
Option 4)
The effect of nuclear shielding is much reduced in fluorine which polarises the HF molecule.
This option is incorrect
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