The IR spectrum of a compound exhibits a broad absorption band at 2500-3000 cm^-1 and a sharp band at 1710 cm^-1.Which of these compounds could it be?

Question

Quizplus · Accepted Answer

The broad absorption band at 2500-3000 cm-1 indicates the presence of O-H or N-H stretching vibrations in the compound, suggesting that it is a carboxylic acid or an alcohol. The sharp band at 1710 cm-1 corresponds to a carbonyl (C=O) stretching vibration, indicating the presence of a carbonyl group in the compound. Among the given options, only butanoic acid contains both an O-H group and a carbonyl group, giving rise to the observed IR spectrum. Therefore, the best choice is option C.

The IR Spectrum of a Compound Exhibits a Broad Absorption