Chapter 8, Problem 111QP

Are the following molecules polar or nonpolar?

$\begin{array}{l}\text{(a)}\text{HI}\\ \text{(b)}{\text{CHF}}_{\text{3}}\\ \text{(c)}{\text{SO}}_{\text{2}}{\text{Cl}}_{\text{2}}\\ \text{(d)}{\text{PF}}_{\text{3}}\end{array}$