Which compound is also known by the name of carbolic acid ?
Correct answer: C. C6H5OH
- A. C2H2OH
- B. H2CO3
- C. C6H5OH
- D. H3PO3
Explanation
Carbolic acid is the traditional name for phenol, C6H5OH, because it was historically obtained from coal tar. H2CO3 is carbonic acid, while the other formulas do not represent phenol.
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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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