Which regions in the IR spectrum could be used to distinguish between benzene and cyclohexane?

Question

Quizplus · Accepted Answer

Benzene and cyclohexane can be distinguished by their C-H stretching vibrations. Benzene, being an aromatic compound, exhibits C-H stretching vibrations in the region of 3100 cm^-1, which is slightly higher than the aliphatic C-H stretching vibrations of cyclohexane, which occur in the range of 2850-2960 cm^-1. Therefore, the region 2900-3100 cm^-1 can be used to distinguish between them.

Which Regions in the IR Spectrum Could Be Used to Distinguish