Answer:
Benzaldehyde is similar to aliphatic aldehydes except that benzaldehyde has a benzene ring attached to the carbonyl group, while aliphatic aldehydes have a straight or branched carbon chain attached to the carbonyl group. This structural difference gives benzaldehyde unique chemical and physical properties that distinguish it from aliphatic aldehydes. For example, benzaldehyde has a characteristic almond-like odor due to the presence of the benzene ring, while aliphatic aldehydes have a pungent odor. Additionally, benzaldehyde is less soluble in water than aliphatic aldehydes due to the nonpolar nature of the benzene ring.