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

Step 1: Understanding the reaction. Propyl magnesium bromide is a Grignard reagent that reacts with CO$_2$ to form a carboxylate anion, which is then hydrolyzed to form a carboxylic acid.

Step 2: Conclusion. Thus, the acid formed is propionic acid (C$_3$H$_7$COOH), corresponding to option (A).