Ncert Exercises & Solutions

Q.45 Sucrose is dextrorotatory but the mixture obtained after hydrolysis is Laevorotatory. Explain.

Sucrose is dextrorotatory. On hydrolysis, it produces a mixture of glucose and fructose having specific rotation +52.5° and 92.4°. Thus, the respectively net resultant mixture becomes laevorotatory

Hence, the mixture is laevorotatory and the product is known as invert sugar.