Question

BCl3 is trigonal planar whereas pcl3 is trigonal pyramidal, why?

Answer 1

Explanation:

Bcl3 is a planar molecule whereas ncl3 is pyramidal because (a) nitrogen atom in smaller than boron atom (b) n – cl bond is moe covalent than b – cl bond (c) b – cl bond is more polar than n–cl bond (d) bcl3 has no lone pair of electrons where ncl3 has a lone pair of electrons.

Answer 2

Answer:

d

Explanation:

Boron trichloride is a planar molecular because it contains 3 bond pairs and zero lone pairs. It undergoes sp 2 hybridization.

Nitrogen trichloride is pyramidal as it has 3 bond pairs and one lone pair. It undergoes sp3 hybridization.