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The decreasing values of bond angles fro...

The decreasing values of bond angles from `NH_(3)` to `SbH_(3)` down the group 15 of the periodic table is due to

A

increasing bp - bp repulsion

B

increasing p - orbital character in `sp^3`

C

decreasing lp - bp repulsion

D

decreasing electronegativity of central atom

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The correct Answer is:
D
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