Chemistry Aldehydes & Ketones DUHS 2022
PMDC Verified Question 37 of 94
Acetophenone is an:
A
Aliphatic ketone
B
Phenol
C
Carboxylic acid
D
Aromatic ketone
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Aromatic ketone
Concept:

The classification of ketones depends on the nature of the carbon groups (alkyl or aryl) attached directly to the carbonyl carbon.

Solution:

  • Acetophenone has the chemical structure \( C_6H_5-CO-CH_3 \).


  • The carbonyl group (\( C=O \)) is attached directly to a phenyl ring (an aromatic group) on one side, and a methyl group (an aliphatic group) on the other.


  • Because it contains at least one aromatic ring directly bonded to the carbonyl, it falls under the category of Aromatic ketones.


Why other options are incorrect:

Aliphatic ketones strictly have alkyl groups on both sides (e.g., acetone). Phenols have an \( -OH \) group directly on a benzene ring. Carboxylic acids contain a \( -COOH \) group.

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