Question:
Which of the following is trihydric phenol?
Which of the following is trihydric phenol?
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1,2-diol = Catechol; 1,3-diol = Resorcinol; 1,4-diol = Quinol.
Updated On: Apr 30, 2026
- Catechol
- Pyrogallol
- Resorcinol
- Quinol
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The Correct Option is B
Solution and Explanation
Step 1: Concept
A trihydric phenol contains three hydroxyl ($-OH$) groups attached to the benzene ring.
Step 2: Analysis
- Catechol, Resorcinol, and Quinol are dihydric phenols (isomers of Benzenediol). - Pyrogallol (Benzene-1,2,3-triol) has three $-OH$ groups.
Step 3: Conclusion
Pyrogallol is the trihydric phenol.
Final Answer: (B)
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