What is the relative rate of $\mathrm{SN}^{1}$ reaction for $\left(\mathrm{CH}_{3}\right)_{2}…

What is the relative rate of $\mathrm{SN}^{1}$ reaction for $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-\mathrm{Br}$?
  1. $10^{6}$
  2. Less than $10^{-4}$
  3. 0.02
  4. 1.0

Solution

$3^{\circ}$ alkyl halides undergo $\mathrm{S}_{\mathrm{N}} 1$ reaction. The relative rate of $\mathrm{S}_{\mathrm{N}} 2$ reaction for $\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{Br}=0.0008$

Asked in: MHT CET 2020 (14 Oct Shift 1)

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