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MHT CET Medical202623 April 2026Evening ShiftChemistryBiomoleculesActual

Identify the product formed when glucose is oxidized with concentrated nitric acid

Options

  1. AGluconic acid
  2. BSaccharic acid
  3. CSorbitol
  4. DMannitol

Correct answer

B. Saccharic acid

Step-by-step solution

Glucose on oxidation with a strong oxidizing agent like concentrated nitric acid ( HNO₃ ) undergoes oxidation at both the terminal aldehyde ( -CHO ) group and the terminal primary alcohol ( -CH₂OH ) group. Both of these groups are converted into carboxylic acid ( -COOH ) groups, resulting in the formation of a dicarboxylic acid known as saccharic acid (or glucaric acid). The reaction can be represented as: CHO-(CHOH)₄-CH₂OH HNO₃ COOH-(CHOH)₄-COOH Thus, the product formed is saccharic acid. Answer: Saccharic acid

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