P-Block Elements Ques 580

Question: $ BCl_3 $ is a planar molecule whereas $ NCl_3 $ is pyramidal because

Options:

A) $ BCl_3 $ has no lone pair of electrons but $ NCl_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.

Show Answer

Answer:

Correct Answer: A

Solution:

In $ BCl_3 $ there is $ sp^{2} $ hybridisation (planar) whereas in $ NCl_3 $ hybridisation is $ sp^{3} $ hence shape is pyramidal



NCERT Chapter Video Solution

Dual Pane