MP Board · Class 12 · Chemistry · BiomoleculesWhat are reducing and non-reducing sugars? Give one example of each.

Carbohydrates that contain a free aldehyde or ketone group and can reduce Fehling's solution and Tollen's reagent are called reducing sugars. Examples include glucose, fructose, and maltose. On the other hand, carbohydrates in which the reducing groups (aldehyde or ketone) are bonded and not free cannot reduce these reagents, and are known as non-reducing sugars. Sucrose is a prominent example of a non-reducing sugar.