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Sucrose is dextrorotatory but the mixture obtained after hydrolysis is laevorotatory. Explain.

Sucrose’s aqueous solution is dextrorotatory, rotating plane-polarized light entering the solution 66.5 degrees to the right. When sucrose is hydrolyzed with dilute acids or invertase enzyme, two products, dextrorotatory D-(+)-glucose and laevorotatory D-(-)-fructose, are produced in equimolar concentration. As a result of sucrose hydrolysis, the sign of rotation changes from Dextro (+) to laevo (–). As a result, the hydrolyzed combination has laevorotatory properties.