Question

$\alpha$-D-Glucopyranose and $\beta$-D-glucopyranose are:

• A. Anomer
• B. Epimer
• C. Diastereomers
• D. Enantiomers

Answer 1

Answer: (A), (B), (C)

The correct options are
A Diastereomers
B Anomer
C Epimer

Diastereomers are stereoisomers that are not mirror images of one another and are non-superimposable on one another. Stereoisomers with two or more stereocenters can be diastereomers.
So $\alpha$-D-Glucopyranose and $\beta$-D-glucopyranose are diastereomers.
Also, they are anomers as well.