Which of the following is an epimeric pair?
A)d-glucose and d-glucosamine
B)d-glucose and d-mannose
C)d-glucose and l-glucose
D)d-lactose and d-sucrose
E)l-mannose and l-fructose

Question

Quizplus · Accepted Answer

D-glucose and D-mannose are epimeric pairs because they differ only in the configuration at carbon 2 (C-2). Both sugars have the same chemical formula and structure except for the orientation of the hydroxyl group at C-2. The other options are not epimeric pairs.

Which of the Following Is an Epimeric Pair