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The H-C-H, H-N-H, and H-O-H bond angles ...

The H-C-H, H-N-H, and H-O-H bond angles (in degrees) in methane, ammonia and water are respectively, closed to

A

109.5,104.5,107.1

B

109.5,107.1,104.5

C

104.5,107.1,104.5

D

107.1,104.5,109.5

Text Solution

Verified by Experts

The correct Answer is:
B

Bond angle `109.5^@" " 107.1^@" " 104.5^@`
Order of repulsions `lp - bp gt bp - bp`, hence greater the no. of lone pairs smaller the bond angle
(If hybridization of central atom is same).
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