Phenol was isolated by Runge from________________?
Correct answer: B. coaltar
- A. vegetable oil
- B. coaltar
- C. wood
- D. none of these
Explanation
Phenol was first isolated by Runge from coal tar, a complex mixture obtained during the destructive distillation of coal. Wood can also give methanol and other organic products on destructive distillation, which may lead students to choose wood.
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About Phenols
Phenols contain a hydroxyl group directly bonded to an aromatic ring, making them more acidic than alcohols because the phenoxide ion is resonance-stabilised. Reactions include ionisation with bases, electrophilic substitution, bromination, nitration and oxidation, with attention to the difference between phenols and aliphatic 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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