Question

H-F has lower boiling point as compared to H²O although fluorine is more electronegative than oxygen?
give reason
answer fast

Answer 1

Because strength and number of H bonding in more in water

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Answer 2

WATER has bent shape and there are two lone pair present on Oxygen to donate..

so water form 4 hydrogen bonds.

In HF, fluorine has two lone pair but it donates only one lone pair, due to its linear shape .. so it form only two hydrogen bonds and after forming hydrogen bond it becomes zigzag in a structure and there is lone pair lone pair repulsion present in it.

So number of hydrogen bond and strength of hydrogen bond is more in water.. it has high boiling point than HF.