question_answer

\[BC{{l}_{3}}\]is a planar molecule while \[NC{{l}_{3}}\] is pyramidal, because                                     [CBSE PMT 1995]

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