Which is not a pair of reducing sugars?

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Question

(D) reducing sugar is any sugar that contains a free aldehyde or ketone group,allowing it to act as a reducing agent. $Glucose$,$Mannose$,$Fructose$,a

Vedclass · Accepted Answer

Sucrose and Starch

Vedclass · Answer

(D) reducing sugar is any sugar that contains a free aldehyde or ketone group,allowing it to act as a reducing agent. $Glucose$,$Mannose$,$Fructose$,and $Galactose$ are all monosaccharides and act as reducing sugars. $Sucrose$ is a disaccharide where the glycosidic linkage is formed between the anomeric carbons of both glucose and fructose,leaving no free aldehyde or ketone group. $Starch$ is a polysaccharide that is also non-reducing. Therefore,the pair $Sucrose$ and $Starch$ are both non-reducing sugars.

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