Which of the following are non-reducing sugar | vedclass

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(C) sugar is non-reducing if its anomeric carbon atoms are involved in the glycosidic linkage,meaning no free hemiacetal or hemiketal group is availab

Vedclass · Accepted Answer

$iii$

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(C) sugar is non-reducing if its anomeric carbon atoms are involved in the glycosidic linkage,meaning no free hemiacetal or hemiketal group is available to open into an aldehyde or ketone form.$(i)$ Represents Maltose,which has a free anomeric carbon and is a reducing sugar.(ii) Represents Lactose,which has a free anomeric carbon and is a reducing sugar.(iii) Represents Sucrose,where both anomeric carbons ($C1$ of glucose and $C2$ of fructose) are involved in the glycosidic linkage,making it a non-reducing sugar.(iv) Represents Cellobiose,which has a free anomeric carbon and is a reducing sugar.Therefore,only structure $(iii)$ is a non-reducing sugar.

Which of the following are non-reducing sugars?

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