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MHT CET Medical202622 April 2026Morning ShiftChemistryAlcohols Phenols and EthersActual

What is the common name of benzene-1,2,3-triol?:

Options

  1. Acatechol
  2. Bresorcinol
  3. Cpyrogallol
  4. Dquinol

Correct answer

C. pyrogallol

Step-by-step solution

The IUPAC name benzene-1,2,3-triol corresponds to a benzene ring with three hydroxyl groups attached to adjacent carbon atoms. Catechol is the common name for benzene-1,2-diol. Resorcinol is the common name for benzene-1,3-diol. Quinol (or hydroquinone) is the common name for benzene-1,4-diol. Pyrogallol is the common name for benzene-1,2,3-triol. Answer: pyrogallol

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