\[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\] is pyramidal because

\[B-Cl\] bond is more polar than \[N-Cl\] bond.

\[BC{{l}_{3}}\] has no lone pair of electrons but \[NC{{l}_{3}}\] has a lone pair of electrons.

nitrogen atom is smaller than boron atom.

\[N-Cl\] bond is more covalent than \[B-Cl\] bond.

\[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\] is pyrami

1.	\[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\] is pyramidal because
A.	\[BC{{l}_{3}}\] has no lone pair of electrons but \[NC{{l}_{3}}\] has a lone pair of electrons.
B.	\[B-Cl\] bond is more polar than \[N-Cl\] bond.
C.	nitrogen atom is smaller than boron atom.
D.	\[N-Cl\] bond is more covalent than \[B-Cl\] bond.
Answer» B. \[B-Cl\] bond is more polar than \[N-Cl\] bond.

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\[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\] is pyramidal because

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