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The compounds of type ECl3  where E=B,P,As(or) Bi the angles ClECl for different E are in the order.

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By Expert Faculty of Sri Chaitanya
a
B>P=As=Bi
b
B>P>As>Bi
c
B
d
B
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detailed solution

Correct option is B

1) In BCl3 , Boron undergoes sp2 Hybridization. So the bond angle is 120∘C2) In PCl3, AsCl3,BiCl3 ,  &  the central atom undergoes  sp3  and one lone pair. Hence the bond angles<109∘28'3) When the hybridization and the number of lone pairs are same, then as the size of the central atom increases, bond angle decreases.


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