Question

$\alpha$-D-glucopyranose and $\beta$-D-glucopyranose is related as:

• A. anomers and diasteremomers
• B. epimers and diastereomers
• C. anomers and enantiomers
• D. diastereomers only

Answer 1

Answer: (A)

anomers and diasteremomers

$\alpha$-D-glucopyranose and $\beta$-D-glucopyranose are anomers and diastereomers.
They differ in the configuration at anomeric carbon atom. Hence, they are anomers.
Besides, they are also not mirror images to each other and are non-superimposable. Hence, they are diastereomers.