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BCl3 molecule is planar while NCl3 is py...

`BCl_3` molecule is planar while `NCl_3` is pyramidal because

A

nitrogen atom is smaller than boron atom

B

`BCl_3` has no lone pair but `NCl_3` has a lone pair of electrons on their central atom s

C

B - Cl bond is more polar than N - Cl bond

D

N - Cl bond is more covalent than B - Cl bond

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The correct Answer is:
B
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