Chemistry - Biomolecules Question with Solution | TestHub
ChemistryBiomoleculesCARBOHYDRATESMedium2 minPYQ_2021
ChemistryMediumsingle choice
Fructose reduces Tollen's reagent due to:
Options:
Answer:
A
Solution:
Tollen's reagent is alkaline. In basic medium fructose undergoes enolisation to an enediol intermediate (Lobry de Bruyn-van Ekenstein rearrangement), which equilibrates with the aldoses glucose and mannose.
The aldehydic form so generated reduces Tollen’s reagent. The reducing behaviour is therefore not due to asymmetric carbons or alcoholic groups. Answer: (A)
Stream:BITSATSubject:ChemistryTopic:BiomoleculesSubtopic:CARBOHYDRATES
⏱ 2mℹ️ Source: PYQ_2021
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