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Question: Answered & Verified by Expert
The following reaction is a/an
$\begin{aligned} \mathrm{CH}_3-\mathrm{CH}_2- & \mathrm{CH}_2-\mathrm{Br} \xrightarrow{\mathrm{KOH}} \\ & \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2+\mathrm{KBr}+\mathrm{H}_2 \mathrm{O}\end{aligned}$
ChemistryHydrocarbonsAP EAMCETAP EAMCET 2021 (24 Aug Shift 2)
Options:
  • A substitution reaction
  • B addition reaction
  • C electrophilic substitution reaction
  • D elimination reaction
Solution:
2800 Upvotes Verified Answer
The correct answer is: elimination reaction
$\begin{aligned} \mathrm{CH}_3-\mathrm{CH}_2- & \mathrm{CH}_2-\mathrm{Br} \xrightarrow{\mathrm{KOH}} \\ & \mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2+\mathrm{KBr}+\mathrm{H}_2 \mathrm{O}\end{aligned}$
In the given reaction alkene is formed from alkane
by elimination of $-\mathrm{H}$ and $-\mathrm{Br}$. So, it is an elimination reaction.

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