1.

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 repulsionB. Decreasing electronegativityC. Increasing bp-bp repulsionD. Decreasing p-orbital character in `sp^(3)` .

Answer» Correct Answer - 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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