Fructose is a ketohexose. Despite lacking a free aldehyde group, it readily reduces Fehling's soluti — Biomolecules Chemistry Question
Question
Fructose is a ketohexose. Despite lacking a free aldehyde group, it readily reduces Fehling's solution and Tollen's reagent. This chemical behavior is primarily due to:
Answer: B
💡 Solution & Explanation
In alkaline mediums like Fehling's and Tollen's reagents, fructose isomerizes (Lobry de Bruyn-van Ekenstein rearrangement) via an enediol intermediate into reducing aldoses like glucose and mannose.
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