Acid-catalyzed reactions of organic compounds with H2SO4(aq) Steps:

• Identify the functional groups: A and B are ketones, C is a primary alcohol.
• Recall reactions with dilute H2SO4(aq): Ketones form no products; primary alcohols dehydrate only under concentrated/hot conditions to alkenes, not carboxylic acids.
• Check for oxidation: H2SO4(aq) alone lacks an oxidant (e.g., no Cr2O7^2-), so no carboxylic acid from alcohol.
• Note missing details: No halogens for haloform on ketones; D option absent.

Why B is correct:

• Not enough information; no clear reaction produces carboxylic acid from any option with just H2SO4(aq).

Why the others are wrong:

• A: Ketone unchanged; no carboxylic acid.
• C: Alcohol forms no carboxylic acid without oxidant.

Final answer: Not enough information.