Question

In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
A.
B.
C.
D.

Answer 1

Correct Answer - B

This structure represents sucrose in which `alpha-D` glucose and `beta-D` fructose is attached to each other by `C_(1)-C_(2)` glycosidic linkage. Since, reducing groups of glucose and fructose are involved in glycosidic bond formation, this is considered as non-reducing sugar.