Question

multiple answer 2 points which of the functional groups below contain a hydroxyl group (-oh) as a part of their structure? aldehyde alcohol aromatic carboxylic acid

Explanation:

• Aldehyde has -CHO, no -OH.
• Alcohol has -OH (R - OH), so it contains -OH.
• Aromatic is a ring structure (e.g., benzene), no -OH.
• Carboxylic acid has -COOH, which includes -OH (as part of -COOH: -C(=O)-OH).

Answer:

B. alcohol, D. carboxylic acid