Question
Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques
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
Answer
IR spectroscopy
Explanation
Solution
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