Chapter 8, Problem 8.48SP

What bond angles do you expect for each of the following?
(a) The $\text{F}—\text{S}—\text{F}$ angle in ${\text{SF}}_{\text{2}}$
(b) The $\text{H}—\text{N}—\text{N}$ angle in ${\text{N}}_{\text{2}}{\text{H}}_{\text{2}}$
(c) The $\text{F}—\text{Kr}—\text{F}$ angle in ${\text{KrF}}_{\text{4}}$
(d) The $\text{Cl}—\text{N}—\text{O}$ angle in NOCl