Which one acts as a non-reducing sugar?

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Question

(C) sugar is considered non-reducing if it does not have a free hemiacetal or hemiketal group,meaning it cannot reduce Tollens' reagent or Fehling's s

Vedclass · Accepted Answer

sucrose

Vedclass · Answer

(C) sugar is considered non-reducing if it does not have a free hemiacetal or hemiketal group,meaning it cannot reduce Tollens' reagent or Fehling's solution. Sucrose is a disaccharide composed of $D-(+)$-glucose and $D-(-)$-fructose joined by a glycosidic linkage between $C1$ of glucose and $C2$ of fructose. Since both the anomeric carbons are involved in the glycosidic bond,sucrose does not have a free functional group to act as a reducing agent,making it a non-reducing sugar.

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