Question

Which of the following does not contain a phenolic group?

• A. Gingerol
• B. Eugenol
• C. Menthol
• D. Curcumin

Hint:

Menthol is a "Terpene Alcohol," not an aromatic "Phenol."

Answer 1

The Correct Option is C

Step 1: Concept
Phenolic compounds contain a hydroxyl group (–OH) directly attached to an aromatic hydrocarbon ring.

Step 2: Meaning
Menthol is a cyclic terpene alcohol obtained from peppermint oil.

Step 3: Analysis
Gingerol (from ginger), Eugenol (from clove), and Curcumin (from turmeric) all possess aromatic rings with phenolic hydroxyl groups. Menthol, however, has a saturated cyclohexane ring, making it a secondary alcohol rather than a phenol.

Step 4: Conclusion
Thus, Menthol is the constituent that lacks a phenolic group.

Final Answer: (C)