JEE Main 2023 — Biomolecules Question with Solution
JEE Main 2023 (01 Feb Shift 2)
Question
All structures given below are of vitamin . Most stable of them is:
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
The enediol is more stable as compared to other tautomers because the enol form is more stabilized by a favorable intramolecular hydrogen bond. This makes vitamin C to exist as conjugates ene-diol and, not as keto tautomer.
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This is a previous-year question from JEE Main 2023, 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.