Chapter 14, Problem 122A

Interpretation Introduction

Interpretation:

The polar molecule have to be identified.

Concept introduction:

Polar molecules are attracted by an electric field as they are dipoles with partially charged ends and they have an unequal electron density.

Answer to Problem 122A

1. SiH₄:- nonpolar
2. NO₂:- polar
3. H₂S:- polar
4. NCl₃:- polar

Explanation of Solution

1. SiH₄:- nonpolar as SiH₄ molecule contains symmetry results in an equal distribution of charge and the molecule is nonpolar.
2. NO₂:- polar, bent shape of NO₂ molecule makes it polardue to unequal charge distribution.
3. H₂S:- polar, bent shape of H₂S molecule makes it polardue to unequal chargedistribution.
4. NCl₃:- polar, asymmetric shape of NCl₃ molecule makes it polardue to unequal charge distribution.