Which among the following is allylic halide?

Which among the following is allylic halide?
  1. $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{X}$
  2. $\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}_2-\mathrm{X}$
  3. $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2 \mathrm{X}$
  4. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{X}$

Solution

In allylic halides, hallogen atom is bonded to a $\mathrm{sp}^3$ hybridized carbon atom riext to a carboncarbon double bond $\left(\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{X}\right)$.

Asked in: MHT CET 2023 (09 May Shift 2)

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