Question

A mixture of $1$-chlorobutane and $2$-chloro- butane when treated with alcoholic $KOH$ gives:

• A. 1-butene
• B. 2-butene
• C. isobutylene
• D. mixture of 1-butene +2- butene

Answer 1

Answer: (D)

On treatment with alcoholic $KOH$, $1$- chlorobutane gives $1$- butene while $2$ - chlorobutane gives $2$- butene (major) $+1$- butane (minor). Therefore, a mixture of $1$- butane $+2$- butane is formed.