A. Formaldehyde
B. Acetaldehyde
C. Benzaldehyde
D. Propanal
Answer: Benzaldehyde
A. Formaldehyde
B. Acetaldehyde
C. Benzaldehyde
D. Propanal
Answer: Benzaldehyde
Additional Information: Benzaldehyde is an aromatic aldehyde with a benzene ring attached to a formyl group.