Question

The acid formed when propyl magnesium bromide is treated with CO$_2$ followed by acid hydrolysis is:

• A. C$_3$H$_7$COOH
• B. C$_2$H$_5$COOH
• C. CH$_3$COOH
• D. C$_3$H$_7$OH

Hint:

Grignard reagents react with CO$_2$ to form carboxylates, which can be hydrolyzed to yield carboxylic acids.

Answer 1

The Correct Option is A

Based on the provided image and prior explanation, the correct response is:

Reaction Mechanism:
The reaction between propyl magnesium bromide (C₃H₇MgBr) and CO₂, followed by acid hydrolysis, is a characteristic Grignard reaction yielding a carboxylic acid. Specifically, this process generates butanoic acid.

Option Evaluation:
The resulting butanoic acid exhibits the structural formula CH₃CH₂CH₂COOH, equivalent to C₃H₇COOH.

Determination:
Option (A) C₃H₇COOH accurately identifies the product of this reaction among the provided choices.

Final Determination:
The correct option is (A) C₃H₇COOH.