Chapter 1, Problem 1.45SP

For each pair of ions, determine which on is more stable Use resonance forms to explain your answers.

1. a. ${\text{CH}}_{\text{3}}\text{—}\stackrel{+}{\text{C}}{\text{H—CH}}_{\text{3}}{\text{or CH}}_{\text{3}}\text{—}\stackrel{+}{\text{C}}{\text{H—OCH}}_{\text{3}}$

1. b. ${\text{CH}}_{\text{2}}=\text{CH—}\stackrel{+}{\text{C}}{\text{H—CH}}_{\text{3}}{\text{or CH}}_{\text{2}}={\text{CH—CH}}_{\text{2}}\text{—}\stackrel{+}{\text{C}}{\text{H}}_{\text{2}}$
2. c. $\stackrel{-}{\text{C}}{\text{H}}_{\text{2}}{\text{—CH}}_{\text{3}}\text{ or }\stackrel{-}{\text{C}}{\text{H}}_{\text{2}}\text{—C}\equiv \text{N:}$