Which of the following techniques is most suitable for purification of cyclohexanone from a mixture containing benzoic acid , isoamyl alcohol , cyclohexane and cyclohexanone ?
A. Crystallisation
B. IR spectroscopy
C. Sublimation
D. Evaporation

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1 Answers

Correct Answer - B
IR spectroscopy is used for the purification of cyclohexanone from a mixture of benzoic acid , isoamyl alcohol , cyclohexane and cyclohexanone because in IR spectroscopy each functional group appears at a certain peak . IR spectroscopy exploits the fact that molecules absorb specific frequencies that are characteristic of their structure .

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