Identify whether the following sugars are reducing or not. What can you say about the common name trehalose of (i)?

• A. (i) reducing sugar(ii) reducing sugarThe “-ose” is accurate because it indicates it has a hemiacetal structure and trehalose is a reducing sugar.
• B. (i) reducing sugar(ii) reducing sugarThe “-ose” is accurate because it indicates it has a hemiacetal structure and trehalose is a reducing sugar.
• C. (i) not a reducing sugar(ii) reducing sugarThe “-ose” ending of the name can be misleading because it indicates it has a hemiacetal structure, but trehalose is a glycoside.
• D. (i) not a reducing sugar(ii) not reducing sugarThe “-ose” ending of the name can be misleading because it indicates it has a hemiacetal structure, but trehalose is a glycoside.

Answer: (C)