Home Chemistry Biomolecules Karnataka - Previous Year Question Sucrose is dextrorotatory but after hydrolys…
Chemistry Biomolecules Karnataka - Previous Year Question Single Correct MCQ
Published on: August 14, 2026

Sucrose is dextrorotatory but after hydrolysis the mixture shows levorotation, this is because of

A
laevo rotation of glucose is more than dextrorotation of fructose
B
sucrose is a non-reducing sugar
C
racemic mixture is formed
D
laevo rotation of fructose is more than dextrorotation of glucose.

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The correct answer is:
D

: Sucrose is dextrorotatory, but on hydrolysis it gives a mixture of dextrorotatory glucose and laevorotatory fructose. Since the laevorotation of fructose is much more than dextrorotation of glucose, therefore the resulting mixture becomes laevorotatory.

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