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| 1. |
Sucrose is dextrorotatory but the mixture obtanied after hydrolysis is laevorotatory. Explain. |
| Answer» SOLUTION :Sucrose is dextrorotatory, with a specific rotation of `[alpha]_(D)=+66.5^@` but on hydrolysis , it GIVE EQUIMOLAR amounts of glucose which is dextrorotatory and FRUCTOSE which is laevorotatory. Since the laevorotation of fructose `(-92.4^@)` is much more than dextrorotation of glucose `(+52.5^@)` , therefore , the resulting SOLUTIONS becomes laevorotatory. | |