Chapter 8.4, Problem 1CP

In which of the following molecules are the bonds most polar?

$\begin{array}{l}\begin{array}{l}\text{a)}\hfill \\ {\text{H}}_{\text{2}}\text{Se}\hfill \\ \text{b)}\hfill \\ {\text{H}}_{\text{2}}\text{O}\hfill \\ \text{c)}\hfill \\ {\text{CO}}_{\text{2}}\hfill \\ \text{d)}\hfill \\ {\text{BCl}}_{\text{3}}\hfill \\ \text{e)}\hfill \end{array}\\ {\text{PCl}}_{\text{5}}\end{array}$