JEE Main 2013 Chemistry question

Chemistry Organic Chemistry - Some Basic Principles and Techniques JEE Main 2013

Natural glucose is termed D-glucose because :

(1)−OH on the second carbon is on the right side in Fischer projection
(2)−OH on the sixth carbon is on the right side in Fischer projection.
(3)−OH on the fifth carbon is on the right side in Fischer projection.Correct
(4)It is dextrorotatory.

Answer: (3)

Solution

The D/L label refers to the configuration of the highest-numbered chiral carbon (C-5 in glucose); its –OH

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Question ID VK-104134