The order of reactivity of the following alkyl bromides towards $\mathrm{S}_{\mathrm{N}}{ }^1$ reactions is…

The order of reactivity of the following alkyl bromides towards $\mathrm{S}_{\mathrm{N}}{ }^1$ reactions is a) $\left(\mathrm{CH}_3ight)_2 \mathrm{CHBr}$ b) $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br}$ c) $\left(\mathrm{CH}_3ight)_3 \mathrm{C}-\mathrm{Br}$
  1. $a>b>c$
  2. $b>a>c$
  3. $c>a>b$
  4. $c>b>a$

Solution

The order of reactivity for $S_N {}^1$ reactions follows the trend: tertiary > secondary > primary alkyl halides.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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