Question

Molecules that have planar configurations include which of the following?

I. BCl3
II. CHCl3
III. NC13
a) I only
b) II only
c) I and II
d) II and III

Answer 1

The molecules with planar configurations include BCl3, CHCl3, and NC13. Option d) is correct.

Step-by-step explanation:

The molecules that have planar configurations include:

1. BCl3: BCl3 has a trigonal planar electron-pair geometry and a trigonal planar molecular structure.
2. CHCl3: CHCl3 has a tetrahedral electron-pair geometry, but it has a planar molecular structure because it has one lone pair of electrons on the central atom.
3. NC13: NC13 also has a tetrahedral electron-pair geometry, but it has a planar molecular structure because it has one lone pair of electrons on the central atom.

Therefore, the correct answer is d) II and III.