JEE Main 2025 — Biomolecules Question with Solution
From: JEE Main 2025 (Online) 24th January Morning Shift
Question
The carbohydrate "Ribose" present in DNA, is
A. A pentose sugar
B. present in pyranose from
C. in "D" configuration
D. a reducing sugar, when free
E. in -anomeric form
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Show full solutionCorrect option: C
Step-by-step explanation
In Ribose carbohydrate present in DNA is Deoxy-D-Ribose whose structure is

which is a reducing -sugar in anomeric form & it is a pentose sugar.
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This is a previous-year question from JEE Main 2025, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.