Multiple choice

In which of the following spectroscopy techniques does the transition occur between magnetic energy levels of paired electrons in a molecule?

  1. Electron spin resonance spectroscopy

  2. Nuclear Magnetic Resonance spectroscopy

  3. Raman spectroscopy

  4. Infrared spectroscopy

  5. Visible spectroscopy
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A Correct answer
Explanation

This answer is correct as in electron spin resonance the transition occurs between magnetic energy levels of paired electrons and region of EM spectrum is microwave. It involves the detection of physical phenomenon of absorption of electromagnetic radiation in microwave region by paramagnetic species.

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