Question

multiple answer 2 points
which of the class of organic compound below contains a carbonyl group (-c=o) as a part of its structure?
☐ carboxylic acid
☐ aromatic
☐ ester
☐ ketons
☐ aldehyde
☐ ether

Explanation:

• Carboxylic acid: Has -COOH, which includes -C=O.
• Aromatic: Based on benzene ring, no carbonyl.
• Ester: Has -COO-, includes -C=O.
• Ketones: Have -C=O bonded to two carbons.
• Aldehyde: Have -C=O bonded to a carbon and H.
• Ether: Has -O-, no carbonyl.

Answer:

A. carboxylic acid, C. ester, D. ketones, E. aldehyde