Question

The $\alpha$-D-glucose and $\beta$-D-glucose differ from each other due to difference in carbon atom with respect to its

• A. conformation
• B. configuration
• C. number of OH-groups
• D. size of hemiacetal ring

Answer 1

Answer: (B)

The $\alpha$-D-glucose and $\beta$-D-glucose are isomers called anomers. The isomer having the hydroxyl group (-OH) on the right is called $\alpha$-D-glucose and one having the hydroxyl group (-OH) on the left is called $\beta$-D-glucose. Such pairs of optical isomers which differ in the configuration only around $C_1$ atom are called anomers