The functional groups in an organic compound can frequently be deduced from its

Question

The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A compound containing C, H, and O exhibits intense absorption at cm^-1. No additional information is available. List possible classes for which there is positive evidence. Relative absorption intensity: (s) = strong, (m) = medium, (w) = weak. What functional class(es) does the compound belong to? List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm. The functional class(es) of this compound is(are)

Explanation / Answer

The compound that shows a peak at 1720 cm-1 in IR spectrum has an aldehyde or ketone functional group.

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