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Question: Answered & Verified by Expert
Natural glucose is termed D-glucose because :
ChemistryBiomoleculesJEE MainJEE Main 2013 (23 Apr Online)
Options:
  • A
    $-\mathrm{OH}$ on the second carbon is on the right side in Fischer projection
  • B
    $-\mathrm{OH}$ on the sixth carbon is on the right side in Fischer projection.
  • C
    $-\mathrm{OH}$ on the fifth carbon is on the right side in Fischer projection.
  • D
    It is dextrorotatory.
Solution:
1410 Upvotes Verified Answer
The correct answer is:
$-\mathrm{OH}$ on the fifth carbon is on the right side in Fischer projection.
Fischer gave the prefix "D" to compounds whose bottom chiral has its $\mathrm{OH}$ to the right. So natural glucose is called D-glucose or dextrose.
Structure of D-Glucose :

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