BiomoleculesMedium
Question
The incorrect statement from the following with respect to carbohydrates is :
Options
A.All monosaccharides are reducing sugars.
B.The monosaccharide units obtained from hydrolysis of oligosaccharides are always the same.
C.Starch and cellulose are typical examples of polysaccharides, which are very high molecular weight compounds of more than ten monosaccharide units.
D.Open chain and cyclic structures co-exist at equilibrium that are responsible for certain properties as in the case of D-(+)-glucose.
Solution
Sol. [Key Concept: The incorrect statement is that monosaccharides from oligosaccharide hydrolysis are 'always the same'; e.g. lactose gives glucose $+$ galactose (different units), so this statement is false.]
The monosaccharide units obtained from hydrolysis of oligosaccharides may be or may not be same.
Example :
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