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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

The open-chain glucose, (an aldohexose) and fructose (a 2-oxohexose) have .... and ..... chiral carbons respectively.

Options

  1. A4, 4
  2. B4, 3
  3. C3, 3
  4. D3, 4

Correct answer

B. 4, 3

Step-by-step solution

Open-chain glucose, H O C H 2 C H O H * C H O H * C H O H * C H O H * C H O has, four chiral carbons (asterisked carbons) and open-chain fructose, H O C H 2 C H O H * C H O H * C H O H * C O C H 2 O H has three chiral carbons.

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