Which of the following functional groups is likely to be present in a molecule that has peaks in the infrared spectrum at 1630-1820 cm−¹ (strong, broad) and 1000-1250 cm−¹; but does not have peaks at 3200-3650 cm−¹? A) alcohol B) aldehyde or ketone C) ether D) ester

Question

Quizplus · Accepted Answer

The presence of peaks in the infrared spectrum at 1630-1820 cm^-1 (indicative of C=O stretching) and 1000-1250 cm^-1 (suggestive of C-O stretching), combined with the absence of peaks at 3200-3650 cm^-1 (which would indicate O-H stretching typical of alcohols), points towards an ester functional group.

Which of the Following Functional Groups Is Likely to Be