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NEET2016ChemistryBiomoleculesActual

The correct corresponding order of names of four aldoses with configuration given below respectively, is

Options

  1. AL - erythrose, L - threose, L - erythrose, D - threose.
  2. BD - threose, D - erythrose, L - threose, L - erythrose.
  3. CL - erythrose, L - threose, D - erythrose, D - threose.
  4. DD - erythrose, D - threose, L - erythrose, L - threose.

Correct answer

D. D - erythrose, D - threose, L - erythrose, L - threose.

Step-by-step solution

If the alcoholic group is present on the left side of the last chiral carbon then it is D - sugar and if it is on the left side then it is L - sugar. All the four given molecules with their names are given below.

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