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MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryBiomoleculesPrevious Year Questions

What is the nature of glucose-glucose linkage in starch that makes it so susceptible to acid hydrolysis? (DUMET 2011)

A.Starch is a hemiacetal

B.Starch is an acetal✓ Correct

C.Starch is a polymer

D.Starch contains only few molecules of glucose

Explanation

Starch is an acetal. Monosaccharides are hemiacetals. Acetals and hemiacetals get readily hydrolysed by acids to give alcohols.

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