Question:
Which from following compounds does NOT contain phenolic - OH group?
Which from following compounds does NOT contain phenolic - OH group?
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Phenolic OH is attached directly to a benzene ring; ascorbic acid has no benzene ring.
Updated On: Nov 13, 2026
- Curcumin
- Eugenol
- Gallic acid
- Ascorbic acid
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
A phenolic -OH group is bonded to a carbon of an aromatic benzene ring.
Step 2: Check the compounds
Curcumin, eugenol and gallic acid all contain a benzene ring with an -OH group.
Step 3: Ascorbic acid
Ascorbic acid (vitamin C) has a furanone ring with enolic -OH groups and no benzene ring, so it has no phenolic -OH.
Final Answer:
Ascorbic acid does not contain a phenolic OH group. \[ \boxed{\text{(D) }\text{Ascorbic acid}} \]
A phenolic -OH group is bonded to a carbon of an aromatic benzene ring.
Step 2: Check the compounds
Curcumin, eugenol and gallic acid all contain a benzene ring with an -OH group.
Step 3: Ascorbic acid
Ascorbic acid (vitamin C) has a furanone ring with enolic -OH groups and no benzene ring, so it has no phenolic -OH.
Final Answer:
Ascorbic acid does not contain a phenolic OH group. \[ \boxed{\text{(D) }\text{Ascorbic acid}} \]
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