JEE Main Chemistry question

A mixture of 1-chlorobutane and 2-chlorobutane when treated with alcoholic KOH gives [Manipal 2008]

(A)1-butene
(B)2-butene
(C)*iso*-butylene
(D)Mixture of 1-butene + 2-buteneCorrect

Answer: (D)

Solution

Alcoholic KOH effects dehydrohalogenation (E2, Saytzeff elimination). 1-Chlorobutane has only one type of β-H and gives exclusively 1-butene. 2-Chlorobutane has β-H

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-142109