STANDARDChemistry-Haloalkanes and Haloarenes

STANDARD Chemistry Elimination Reactions MCQ Question

Type: MCQ-conceptual-Medium-Class 12

The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

A

3° < 2° < 1°

B

3° > 2° > 1°

C

3° < 2° > 1°

D

3° > 2° < 1°

Correct Answer

Option B

Detailed Explanation

In dehydrohalogenation, the stability of the resulting alkene determines the ease of reaction. Tertiary (3°) alkyl halides form more stable alkenes due to hyperconjugation and inductive effects, making them more reactive in dehydrohalogenation.

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