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MHT CET202521 Apr 2025Morning ShiftChemistryAlcohols Phenols and EthersActual

Which from following compounds does NOT contain phenolic -OH group?

Options

  1. ACurcumin
  2. BEugenol
  3. CGallic acid
  4. DAscorbic acid

Correct answer

D. Ascorbic acid

Step-by-step solution

A phenolic -OH group requires attachment directly to an aromatic benzene ring. Curcumin contains two phenolic -OH groups, each bonded to substituted benzene rings. Eugenol has one phenolic -OH group on its benzene ring. Gallic acid ( 3,4,5 -trihydroxybenzoic acid) contains three phenolic -OH groups. Ascorbic acid features enediol groups within a furanone lactone ring system, lacking any aromatic benzene ring and therefore no phenolic -OH group. The compound without a phenolic -OH group is D .

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