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When phenol reacts with excess bromine water (Br2/H2O), a white precipitate is formed. How many bromine atoms are present in one molecule of this aromatic product?
- 1
- 2
- 3
- 4
Correct answer: 3
Solution
Phenol reacts with excess bromine water to give 2,4,6-tribromophenol (white precipitate) with three bromine atoms substituted at the 2, 4, and 6 positions, since the hydroxyl group activates all three positions strongly.
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