Which of the following compounds gives an infrared spectrum with a peak in the range of 1630-1820 cm^-1 (strong peak), but does not have peaks at 3200-3650 or 1000-1250 cm^-1?

Question

Quizplus · Accepted Answer

Compound 2 contains a carbonyl group (C=O), which typically gives a strong peak in the 1630-1820 cm^-1 range in infrared spectroscopy. Compounds 1, 3, and 4 do not contain a carbonyl group and would not have a peak in this region. Additionally, compounds 1 and 4 contain OH groups, which would typically give peaks in the 3200-3650 cm^-1 range, and compound 3 contains a C-O bond, which would typically give a peak in the 1000-1250 cm^-1 range. Therefore, the only compound that fits the given criteria is compound 2.

Which of the Following Compounds Gives an Infrared Spectrum with a Peak