Assertion : A solution of sucrose in water is dexotrorotatory but on hydrolysis in presence of little hydrochloric acid , it because laevorotatory. Reason : Sucrose on hydrolysis gives unequal amounts of glucose and fructose as a result of which change in sign of rotation is observed.

Assertion : A solution of sucrose in water is dexotrorotatory but on h

1.	Assertion : A solution of sucrose in water is dexotrorotatory but on hydrolysis in presence of little hydrochloric acid , it because laevorotatory. Reason : Sucrose on hydrolysis gives unequal amounts of glucose and fructose as a result of which change in sign of rotation is observed.
Answer» If both assertion and reason are TRUE , and is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. If asseration is true , but reason is false. If both assertion and reason are false. Solution :Correct reason : Sucrose on HYDROLYSIS gives EQUAL amounts of glucose and FRUCTOSE. Since fructose is more laevorotatory than glucose is dextrorotatory. THEREFORE , the resulting mixture becomes laevorotatory.