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Alcohols, Phenols, and Ethers — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryAlcohols, Phenols, and Ethers1 Mark
MCQ
Which of the following statement is not correct?
  • A
    Phenol is neutralised by sodium carbonate.
  • B
    Phenol is used to prepare analgesic drugs.
  • C
    Solubility of phenol in water is more than that of chlorobenzene.
  • D
    Boiling point of o-nitrophenol is lower than that of p-nitrophenol.
✓

Answer

  1. Phenol is neutralised by sodium carbonate.

Explanation:

Phenol does not react with Na2​CO3​ because it is weaker acid than carboxylic acid and thereby do not have the strength to substitute or give away its H+ ions to that of weak bases like sodium carbonate.

Phenol is used for the preparation of aspirin which is used as an analgesic as well as antipyretic drugs.

Phenol is more soluble in water than chlorobenzene due to formation of H-bond with water molecules.

o-nitrophenol form intramolecular H−bonding while p-nitrophenol form intermolecular H−bonding. Due to this, nature o-nitrophenol has a lower boiling point than p-nitrophenol.

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