Pre and Post Test: NMR

Which of the following is the physical phenomenon underlying NMR spectroscopy?

• Nuclear fusion

• Electron spin resonance

• Nuclear spin resonance

• Photoelectric effect

Which nucleus is commonly used in NMR spectroscopy?

• Carbon-12

• Hydrogen-1

• Oxygen-16

• Nitrogen-14

Which parameter is measured in NMR spectroscopy?

• Absorbance

• Transmittance

• Fluorescence

• Chemical shift

Which factor affects the chemical shift in NMR spectroscopy?

• Magnetic field strength

• Spin-spin coupling

• Pulse sequence

• Temperature

Which parameter determines the resolution of an NMR spectrum?

• Signal intensity

• Chemical shift

• Spin-spin coupling

• Spectral width

Which of the following factors affects the resonance frequency of a nucleus in NMR?

• The magnetic field strength

• The temperature

• The sample concentration

• The molecular weight of the molecule

Why is NMR spectroscopy useful in the study of metabolomics?

• It allows the determination of the conformation of membrane proteins.

• It allows the identification and quantification of small molecules in complex mixtures.

• It is sensitive to the dynamics of biomolecules.

• It allows the study of protein-protein interactions.