Chapter 2, Problem 19P

Determine the shapes of each of the following moleculesand then, using the data in table 2.2 state whether each is expected to be polar or not: (a) ${\text{H}}_{\text{2}}\text{S}$; (b) ${\text{CO}}_{\text{2}}$; (c) ${\text{SO}}_{\text{2}}$; (d) ${\text{BF}}_3$; (e) ${\text{PF}}_5$; (f) cis- ${\text{N}}_2{\text{F}}_2$; (g) trans- ${\text{N}}_2{\text{F}}_2$; (h) HCN.