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NEET 2016
Exam
NEET
Year
2016
Subject
Chemistry
Chapter
Biomolecules

NEET 2016 · Chemistry · Biomolecules

The correct corresponding order of names of four aldoses with...

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

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

Options

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

Correct answer

D. D−D -erythrose, D−D -threose, L−L -erythrose, L−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−D - sugar and if it is on the left side then it is L−L - sugar.

All the four given molecules with their names are given below. The correct corresponding order of names of four aldoses with configuration given below respectively, is

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