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Q.

The bond angle in PH3 is expected to be

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a

109°

b

90°

c

120°

d

105°

answer is C.

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Detailed Solution

PH3 has 8( = 5 + 3 x 1) valence electrons. There are distributed as,

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There are 4 pairs of electrons around P. This leads to tetrahedrol geometry with bond angle near to 109°.

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