Chapter 13.5, Problem 13.6P

Interpretation Introduction

Interpretation:

Among ${\text{SO}}_{\text{2}}$, ${\text{Br}}_{\text{2}}$ and ${\text{CH}}_{\text{3}}\text{F}$ molecules that are polar have to be determined.

Concept Introduction:

Molecules that have uneven electrons distributed among the bonded atoms are termed as polar molecules. In polar molecules, bonded atoms have difference in their electronegativity.

Dipole moment is the quantity that measures the polarity of the molecule. It is represented by an arrow. The arrow head point towards the more electronegative atom and its tail towards less electronegative atom. Polar molecules have some dipole moment or there dipole moment is canceled out. Whereas nonpolar molecule does not possess any dipole moment as there is no electronegative difference in it.