Question

Glucose and mannose are

• A. epimers
• B. anomers
• C. ketohexoses
• D. disaccharide

Answer 1

Answer: (A)

epimers

Answer 2

Glucose and mannose are epimers because they both differ in configuration at $C_2$ position. The isomers which differ at $C_2$ position are known as epimers of each other.