An IR spectrum of an unknown organic molecule having the molecular formula of C₄H₈O shows no absorptions at 1630-1780 cm^-¹ or at 3200-3500 cm^-¹.To what class of compounds does the unknown belong?

Question

Quizplus · Accepted Answer

The absence of absorptions at 1630-1780 cm^-1 rules out carbonyl-containing compounds (ketones, aldehydes, and carboxylic acids), and the lack of absorptions at 3200-3500 cm^-1 suggests the absence of O-H bonds, ruling out alcohols. This leaves ethers as the correct class, which do not exhibit these specific IR absorptions.

An IR Spectrum of an Unknown Organic Molecule Having the Molecular