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The hydrides of the first elements in gr...

The hydrides of the first elements in group 15-17, namely `NH_(3) , H_(2)O` and HF respectively show abnormally high values for melting and boiling points. This is due to-

A

small size of N, O and F

B

the ability to form extensive intermolecular H-bonding

C

the ability to form extensive intramolecular H-bonding

D

effective van der Waals interaction

Text Solution

Verified by Experts

The correct Answer is:
B
The melting and boiling points of `NH_(3)` ,`H_(2)O` and HF are abnormally high, because these compounds can form intermoleclar H -bonds.
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