The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

Question

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°

Tardigrade Admin · Accepted Answer

Such dehydrohalogenation follow E2 mechanism. The driving force of such reaction is the stability of alkene produced. Since, tertiary alkyl halide can give more substituted alkene, it reacts fastest followed by secondary and primary i.e., 3° >2° >1° .

Q. The ease of dehydrohalogenation of alkyl halide with alcoholic $K O H$ is

$3^{\circ} < 2^{\circ} < 1^{\circ}$

$3^{\circ} > 2^{\circ} > 1^{\circ}$

$3^{\circ} < 2^{\circ} > 1^{\circ}$

$3^{\circ} > 2^{\circ} < 1^{\circ}$

Such dehydrohalogenation follow $E_{2}$ mechanism. The driving force of such reaction is the stability of alkene produced. Since, tertiary alkyl halide can give more substituted alkene, it reacts fastest followed by secondary and primary $i . e ., 3^{\circ} > 2^{\circ} > 1^{\circ} .$

Q. The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

3∘<2∘<1∘

3∘>2∘>1∘

3∘<2∘>1∘

3∘>2∘<1∘