Question

The correct statement about anomers are:

• A. Anomers of glucose have different stereochemistry at $C-1$ (anomeric carbon)
• B. $\alpha$ -D-glycopyranose and $\beta$-D-glycopyranose are anomers
• C. Both anomres of D-glucopyranose can be crystallised and purified
• D. When pure $\alpha$-D-glucopyranose is dissolved in water its optical rotation slowly changes

Answer 1

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

When pure $\alpha$-D-glucopyranose is dissolved in water its optical rotation slowly changes

The two cyclic hemiacetal forms of glucose differ only in the configuration of the hydroxyl group at $C1$ called anomeric carbon. Such isomers, i.e., $\alpha -$form and $\beta$ form, are called anomers, whereas when stereochemistry at any other carbon is different then those carbohydrates are known as epimers. Both anomres of D-glucopyranose can be crystallised and purified and When pure $\alpha$-D-glucopyranose is dissolved in water its optical rotation slowly changes