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Which of the following has the highest e...

Which of the following has the highest extent of hydrogen bonding? A) NH3, B)H2O c)HF

A

`NH_3`

B

`H_2O`

C

`HF`

D

Same in all

Text Solution

Verified by Experts

The correct Answer is:
B
Among nitrogen, fluorine and oxygen, the increasing order of electronegativities are `N lt O lt F`. Hence, `HF gt H_2O gt NH_3`. But, the actual order is `HO gt HF gt NH_3`. Although fluorine is more electronegative than oxygen, the extent of hydrogen bonding is higher in water.
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