Hydrocarbons Question 201
Question: Aqueous sulphuric acid reacts with 2-methyl-1-butene to give predominantly [Roorkee 1992]
Options:
A) Isobutyl hydrogen sulphate
B) 2-methyl-2-butanol
C) 2-methyl-1-butanol
D) Secondary butyl hydrogen sulphate
Show Answer
Answer:
Correct Answer: B
Solution:
$ \begin{matrix} CH_3 \\ C\underset{2-\text{methyl-1-butane}}{\mathop{H_2=\overset{|}{\mathop{C}}-CH_2-CH_3}}+H_2O\underset{\text{Markownikoff }’\text{ s rule}}{\mathop{\xrightarrow{H_2SO_4}}} \\ \end{matrix} $
$ \underset{2-\text{Methyl-2-butanol}}{\mathop{\begin{matrix} \ \ \ \ \ \ \ CH_3 \\ CH_3-\underset{|}{\overset{|}{\mathop{C}}}-CH_2-CH_3 \\ \ \ \ \ \ \ \ \ OH \\ \end{matrix} }} $
BETA
