Based on the following IR spectrum,
Spectrum obtained from: SDBSWeb : http://riodb01.ibase.aist.go.jp/sdbs/ (National Institute of Advanced Industrial Science and Technology,11-06-08)
The compound represented would be classified as an:

Question

Based on the following IR spectrum, 
Spectrum obtained from: SDBSWeb : http://riodb01.ibase.aist.go.jp/sdbs/ (National Institute of Advanced Industrial Science and Technology,11-06-08)
The compound represented would be classified as an:

Quizplus · Accepted Answer

The IR spectrum shows a sharp peak at around 1700 cm^-1, which is characteristic of a carbonyl group. The presence of an aromatic ring is also suggested by the strong absorption band at around 1600 cm^-1. Therefore, the compound represented would be classified as an aromatic aldehyde.

Based on the Following IR Spectrum