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The decreasing valuse of bond angles fro...

The decreasing valuse of bond angles from `NH_(3) (106^(@))` to `SbH_(3)(101^(@))` down group -15 of the periodic table is due to .

A

Decreasing lp-lp repulsion

B

Decreasing electronegativity

C

Increasing bp-bp repulsion

D

Decreasing p-orbital character in `sp^(3)` .

Text Solution

Verified by Experts

The correct Answer is:
B
Due to decrease in `EN` the bond pair moves away hence repulsion will be less from `NH_(3)` to `SbH_(3)` .
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