7. Substitution Reactions

Which of the following alkyl halides would undergo an $S_{\mathrm{N}}1$ reaction the fastest?

Rank the following alkyl halides in order of increasing reactivity in an $S{N}_1$ reaction: $\mathrm{CH}{3}_{\mathrm{Br}}$, $\mathrm{CH}{3}_{\mathrm{CH}}{2}_{\mathrm{Br}}$, $(\mathrm{CH}{3}_{)}2\mathrm{CHBr}$, $(\mathrm{CH}{3}_{)}3\mathrm{CBr}$.

Predict the product of the following reaction:

Which of the following is a characteristic property of the $S{N}_1$ reaction mechanism?

Which statement best describes the organic product formed in a typical $S{N}_1$ reaction?

Which of the following rate laws describes the kinetics of an $S{N}_1$ reaction?

Provide the mechanism and final products for the following reactions.