Arrange the following organic halides in correct order of reactivity towards $\mathrm{S}_{\mathrm{N}} 2$ displacement.

Question

Aicharya · Accepted Answer

$3^{\circ}$ alkyl halide (highly sterically hindered) $1^{\circ}$ alkyl halide (least sterically hindered) (R) $2^{\circ}$ alkyl halide Rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction $\propto \frac{1}{\text { sterically hindrance }}$ $\therefore$ Rate is $1^{\circ} > 2^{\circ} > 3^{\circ}$ alkyl halide. Hence, $Q > R > P$ is correct answer.

Arrange the following organic halides in correct order of reactivity towards \(\mathrm{S}_{\mathrm{N}} 2\)…

Solution