The hydrolysis of sucrose is called inversion because:
Correct answer: A. Its optical rotation sign changes from dextrorotatory (+) to levorotatory (-)
- A. Its optical rotation sign changes from dextrorotatory (+) to levorotatory (-)
- B. Its optical rotation sign changes from levorotatory (-) to dextrorotatory (+)
- C. Its optical rotation sign remains unchanged
- D. None of the given options are correct
Explanation
Sucrose is dextrorotatory (+66.5°). Upon hydrolysis, it forms a mixture of glucose (+52.5°) and fructose (-92.0°). Since the levorotation of fructose is greater than the dextrorotation of glucose, the resulting mixture is levorotatory, and the sign of rotation has "inverted."
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