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NEETChemistryBiomolecules

Which of the following statements is not true about naturally occurring fructose?

Options

  1. AIt is a non-reducing sugar.
  2. BIt is a ketohexose.
  3. CIt is laevorotatory in nature.
  4. DIt belongs to the D-series.

Correct answer

A. It is a non-reducing sugar.

Step-by-step solution

Fructose is an important ketohexose. It contains six carbon atoms and a ketonic functional group at carbon number 2, making it a ketohexose. Naturally occurring fructose belongs to the D-series and is a laevorotatory compound. It is appropriately written as D-(-)-fructose. All monosaccharides, whether aldoses or ketoses, are reducing sugars. Fructose reduces Tollens' reagent and Fehling's solution (under alkaline conditions, it isomerises to a mixture of glucose and mannose). Therefore, the statement that it is a n

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