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Question
The correct sequence of decrease in the bond angles of the following hydrides is
Options:
A .  NH3> PH3> AsH3> SbH3
B .  NH3> AsH3> PH3> SbH3
C .  SbH3> AsH3> PH3> NH3
D .  PH3> NH3> AsH3> SbH3
Answer: Option A
:
A
NH3 has sp3 hybridisation with bond angle 1070 where as PH3,AsH3,SbH3 has pure orbitals overlapping with bond angle around 900

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