Question

which are non reducing sugar​

Answer 1

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⭐Examples of Reducing sugars are:Glucose, Fructose, Mannose, Galactose, Lactose, and Maltose.
⭐Nonreducing sugar A sugar that cannot donate electrons to other molecules and therefore cannot act as a reducing agent. Sucrose is the most common nonreducing sugar.

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Answer 2

A nonreducing sugar is a carbohydrate that is not oxidized by a weak oxidizing agent (an oxidizing agent that oxidizes aldehydes but not alcohols, such as the Tollen’s reagent) in basic aqueous solution.  The characteristic property of nonreducing sugars is that, in basic aqueous medium, they do not generate any compounds containing an aldehyde group.