Chapter 22, Problem 28P

Arrange the following compounds or anions in each group in order of decreasing basicity:

(a) ${\text{H}}_{\text{3}}{\text{C}}^{-}$, ${\text{H}}_{\text{2}}{\text{N}}^{-}$, ${\text{HO}}^{-}$, ${\text{F}}^{-}$

(b) ${\text{H}}_{\text{2}}\text{O}$, ${\text{NH}}_{\text{3}}$, ${\text{HO}}^{-}$, ${\text{H}}_{\text{2}}{\text{N}}^{-}$

(c) ${\text{HO}}^{-}$, ${\text{H}}_{\text{2}}{\text{N}}^{-}$, $\stackrel{-}{\text{C}}=\text{N}$, ${\text{NO}}_{\text{3}}{}^{-}$

(d)