Fundamentals of Organic ChemistryChemistryBiomolecules
Which of the following carbohydrates is NOT a disaccharide?
Options
- AMaltose
- BSucrose
- CMannose
- DLactose
Correct answer
C. Mannose
Step-by-step solution
Carbohydrates are classified into monosaccharides, oligosaccharides, and polysaccharides based on their behavior on hydrolysis. Maltose is a disaccharide that yields two molecules of D-glucose on hydrolysis. Sucrose is a disaccharide that yields one molecule of D-glucose and one molecule of D-fructose on hydrolysis. Lactose is a disaccharide that yields one molecule of D-galactose and one molecule of D-glucose on hydrolysis. Mannose is a monosaccharide (an aldohexose) and cannot be hydrolyzed further into simpler c