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

Given the image and the previous explanation, the correct answer is:

Understanding the Reaction:
The reaction of propyl magnesium bromide (C₃H₇MgBr) with CO₂ followed by acid hydrolysis is a standard Grignard reaction that produces a carboxylic acid. In this case, it forms butanoic acid.

Analyzing the Options:
The product butanoic acid has the structural formula CH₃CH₂CH₂COOH, which can also be written as C₃H₇COOH.

Conclusion:
Among the given options, option (A) C₃H₇COOH correctly represents the product of this reaction.

Final Answer:
The correct answer is (A) C₃H₇COOH.