Spectroscopy and the Electromagnetic Spectrum

AP Chemistry· difficulty 3/5

UV-Vis spectroscopy measures absorption of light in the _______ range, used to study _______.

A
$infrared; vibrations$
B
$ultraviolet to visible (~200-800 nm); electronic transitions, often in conjugated systems$
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C
$radio; nuclear spin$
D
$X-ray; atoms$

Explanation

UV-Vis: electronic transitions (π \to π*, n \to π*, etc.). IR: bond vibrations. NMR: nuclear spin transitions in magnetic field.

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