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Infrared and Ultraviolet/Visible spectroscopy questions

Google Classroom

Which of the following statements accurately describes the molecular vibrations characteristic of IR spectroscopy?

(Choice A)
Stretching frequencies appear mostly in the fingerprint region.
(Choice B)
Triple bonds have lower stretching frequencies than corresponding double bonds, which in turn have lower frequencies than single bonds.
(Choice C)
Bonds to hydrogen have higher stretching frequencies than those to heavier atoms.
(Choice D)
Stretching frequencies are lower than corresponding bending frequencies.

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