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AP EAMCET · Chemistry · Haloalkanes and Haloarenes

The rate of dehydrohalogenation of which one among the following is less ?

  1. A \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br}\)
  2. B \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Cl}\)
  3. C \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Cl}\)

Step-by-step Solution

Detailed explanation

Dehydrohalogenation reaction order is alkyl halide relative reactivity order is \(3^{\circ}>2^{\circ}>1^{\circ}\) Alkyl halide reactivity order is \(\mathrm{I}>\mathrm{Br}>\mathrm{Cl}>\mathrm{F}\) (in \(\beta\) elimination of \(\mathrm{F}\) is rarely used). When heated with…