WBJEE · Chemistry · Hydrocarbons
The ease of dehydrohalogenation of alkyl halide with alcoholic \(\mathrm{KOH}\) is
- A \(3^{\circ} < 2^{\circ} < 1^{\circ}\)
- B \(3^{\circ} > 2^{\circ} > 1^{\circ}\)
- C \(3^{\circ} < 2^{\circ} > 1^{\circ}\)
- D \(3^{\circ} > 2^{\circ} < 1^{\circ}\)
Answer & Solution
Correct Answer
(B) \(3^{\circ} > 2^{\circ} > 1^{\circ}\)
Step-by-step Solution
Detailed explanation
Hints : Such dehydrohalogenation follows \(\mathrm{E}_2\) mechanism. The driving force of such reactions is the stability of alkene produced. Since tetriary alkyl halide can give more substituted alkene, it reacts fastest followed by secondary and primary i.e.…
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