The Bond Angle In AsH3 is Greater Than That In

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Question

The bond angle in AsH₃ is greater than that in

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Solution

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BCl₃ has bond angle equal to 120° (trigonal planar). NH₃ and H₂O havesp³ hybridisation but due to the presence of lone pair of electrons, they have bond angle less than 109°28' (NH₃ - 107°, H₂O – 104.5° ), AsH₃(sp³ hybrid) has smaller bond angle than other molecules.