Hydrolysis yielding carboxylic acids

Steps:

• Hydrolysis breaks bonds by adding water, often producing specific functional groups.
• Esters hydrolyze to carboxylic acids (RCOOH) and alcohols.
• Amides hydrolyze to carboxylic acids (RCOOH) and amines.
• Assuming molecule 1 is an ester and 3 is an amide, while 2 is not (e.g., ether or alkane), only 1 and 3 yield carboxyl groups.

Why B is correct:

• Option B selects 1 and 3, matching ester and amide hydrolysis products containing the -COOH group per organic reaction definitions.

Why the others are wrong:

• A includes 2, whose hydrolysis (if any) lacks a carboxyl product.
• C includes 2 but excludes 1, missing the ester's carboxylic acid.
• D excludes 1, ignoring the ester's carboxyl-containing product.

Final answer: B