The functional group region of an infrared spectrum is A)where the cations appear. B)greater than or equal to 1500 cm^-1. C)less than 1500 cm^-1. D)greater than or equal to 2500 cm^-1.

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The functional group region of an infrared spectrum is typically considered to be greater than or equal to 1500 cm^-1. This region is where most of the characteristic absorptions of different functional groups (like OH, NH, CO, etc.) occur, allowing for the identification of various chemical functionalities in a molecule.

The Functional Group Region of an Infrared Spectrum Is