Which reagent distinguishes ethanol from phenol?
- A. Sodium metal
- B. Bromine water
- C. Water
- D. A lighted splint
Explanation
Phenol decolourises bromine water immediately and gives a white precipitate of the tribromo compound, whereas ethanol produces no visible change. Sodium metal is not suitable, since both compounds contain a hydroxyl group and both release hydrogen with it. Neutral iron three chloride is the other reliable distinguishing test.
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