Question

The letter ‘$D$’ in $D$-carbohydrates represents

• A. Dextrorotation
• B. Direct synthesis
• C. Configuration
• D. Mutarotation
• E. Optical activity

Answer 1

Answer: (C)

D indicate the configuration of carbohydrate. it represents the position of second last -OH group in any carbohydrates. If -OH is present on right side then it is called D type configuration and if it is present on left side then it is called L type configuration.