Question

The reagent which may be used to distinguish between cane sugar and glucose solutions is :

• A. $I_2$ solution
• B. Baeyer's reagent
• C. Both $A$ and $B$
• D. Fehling's solution

Answer 1

The correct option is D Fehling's solution

Glucose is a reducing sugar whereas cane sugar is a non-reducing sugar.

Glucose does not have any glycosidic linkage so it can be reduced by Fehling's reagent, but cane sugar has a glycosidic linkage and due to the absence of free $-CHO$ group, it cannot be reduced.

So, Fehling's solution can be used to distinguish between these two.