Question

In the following sequence of reactions, \[ \text{CH}_3\text{CH}_2\text{OH} \xrightarrow{P_1,2} A \xrightarrow{\text{Mg/ether}} B \xrightarrow{\text{HCHO}} C \xrightarrow{H_2O} D \] The compound D is:

• A. propanal
• B. butanal
• C. n-butyl alcohol
• D. n-propyl alcohol

Hint:

Grignard reagents react with formaldehyde to form alcohols.

Answer 1

The Correct Option is D

Step 1: Stepwise analysis.
- The reaction with P\(_1,2\) converts ethanol to an aldehyde (propanal). - The reaction with Mg/ether forms a Grignard reagent. - The reaction with formaldehyde results in a secondary alcohol (butanol). - The final reaction with water gives n-propyl alcohol.

Step 2: Conclusion.
Thus, compound D is n-propyl alcohol.