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Bond angle in NH(3) is more than in PH(3...

Bond angle in `NH_(3)` is more than in `PH_(3).` Explain.

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Bond angle in `PH_(3)(93.6^(@))` is less than in `NH_(3)(107.8^(@))` because nitrogen is more electronegative (3.0) than phosphorus (2.1). As a result, there is a greater repulsion in the shared electron pairs around nitrogen than around phosphorus.
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