Question

Propyl lithium reacts with ethene to give a compound $\left(A\right)$ which on reaction with methanal followed by acidic hydrolysis gives compound $\left(B\right)$ is:

• A. Heptan-1-ol
• B. Heptan-2-ol
• C. Hexan-1-ol
• D. Hexan-2-ol

Answer 1

The correct option is C Hexan-1-ol

Propyl lithium reacts with ethene to give a compound (A) which is pentyl lithium. A molecule of propyl lithium is added across C = C double bond of ethene.
Pentyl lithium on reaction with methanal (formaldehyde) followed by acidic hydrolysis
gives compound (B) which is hexan-1-ol. Thus, the option C is the correct answer.