During a carbohydrate analysis, a student observes that most disaccharides reduce Fehling's solution, but one specific sugar fails to react. Identify it.
Q1. During a carbohydrate analysis, a student observes that most disaccharides reduce Fehling's solution, but one specific sugar fails to react. Identify it.
Answer: Sucrose
Explanation: Sucrose is non-reducing because its 1,2-glycosidic bond masks both anomeric carbons. Maltose is tempting but has a free hemiacetal group.