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Assertion: A solution of sucrose in water is dextrorotatory but on hydrolysis in presence of little hydrochloric acid, it becomes laevorotatory. Reason: Sucrose on hydrolysis gives unequal amounts of glucose and fructose as.

Answer»

If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are truebut reason is not the correct explanation of the assertion.
If assertion is true but reason is false
if the assertion and reason both are false

Solution :Sucrose on hydrolysis GIVES equal AMOUNTS of glucose and fructose. Since glucose has LESS positive Which of the FOLLOWING and fructose has more negative magnitude of rotation, THEREFORE, change in the sign of rotation is observed .


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