Question

The correct statement about the following disaccharide

A. ring (i) is pyranose with `alpha`- glycosidic link
B. ring (i) furanose with `alpha-`glycosidic link
C. ring (ii) is pyranose with `alpha`-glycosidic link.
D. ring (ii) is pyranose with `beta`-glycosidic link .

Answer 1

Correct Answer - A
The disaccharide is sucrose, with ring (i) having 6-members and hence is a pyranose and ring (ii) has 5-members and hence is a furanose . C-1 of ring (i) and C-2 of ring (ii) has an `alpha`-glycosidic linkage.