Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The 
is a planar molecule whereas 
is pyramidal because
A
nitrogen atom is smaller than boron atom
B
has no lone pair but 
has a lone pair of electrons
C
B—CI bond is more polar than N—CI bond
D
N—CI bond is more covalent than B—CI bond.
Text Solution
Verified by ExpertsThe correct answer is:
B
There is no lone pair on boron in 
hence no repulsion takes place. There is a lone pair on nitrogen in 
hence repulsion takes place. Therefore 
is planar molecule but 
is pyramidal molecule.
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