Phenol and ethanol can be distinguished by all of thefollowing EXCEPT:
Correct answer: B. Na-metal
- A. lodoform test
- B. Na-metal
- C. Aq. Br2
- D. Lucas reagent
Explanation
Both phenol and ethanol have an acidic proton on their hydroxyl groups and will react with active metals like sodium to produce hydrogen gas. Therefore, this test cannot be used to distinguish between them.
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About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
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535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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