Question

question
what is the unidentified product of the reaction?
select the correct answer below:
○ ch₃ - ch₂ - ch₂ - cooh
○ ch₃ - ch₂ - cooh
○ ch₃ - ch₂ - ch₂ - ch₂ - cooh
○ ch₃ - ch₂ - ch₂ - coh

Explanation:

Step1: Analyze the reaction type

This is a hydrolysis reaction of an amide. In acidic conditions (\( \text{H}_2\text{O}+\text{HCl} \)), the amide bond (\( -\text{C}(=\text{O})-\text{N}- \)) breaks.

Step2: Determine the products

The general formula for amide hydrolysis \( \text{R}-\text{C}(=\text{O})-\text{N}(\text{R}')_2+\text{H}_2\text{O}+\text{HCl}\to\text{R}-\text{COOH}+(\text{R}')_2\text{NH}_2^+\text{Cl}^- \). Here, \( \text{R}=\text{CH}_3\text{CH}_2\text{CH}_2 - \), and the two \( \text{R}' \) groups are \( \text{CH}_3 - \). So the carboxylic - acid product is \( \text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}\).
Option B (\( \text{CH}_3\text{CH}_2\text{COOH} \)) has one less \( \text{CH}_2 \) group than the alkyl part of the amide reactant. Option C (\( \text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{COOH} \)) has one extra \( \text{CH}_2 \) group. Option D (\( \text{CH}_3\text{CH}_2\text{CH}_2\text{COH} \)) is not a valid carboxylic - acid structure (missing the second oxygen in the carboxyl group).

Answer:

A. \( \text{CH}_3-\text{CH}_2-\text{CH}_2-\text{COOH} \)