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Biochemistry - NMR Spectroscopy

Exercise : NMR Spectroscopy - Section 1
  • NMR Spectroscopy - Section 1
1.
What is shielding in NMR?
Using a curved piece of metal to block an opponents attack
Putting metal around an Rf source
When the magnetic moment of an atom blocks the full induced magnetic field from surrounding nuclei
Blocking parts of a molecule from Rf radiation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
What is used to cool the superconducting coil?
Hydrogen
Ice
Dry ice
Liquid helium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Coupling causes the peaks in 1H NMR spectra to be split into
two peaks
multiple peaks equal to the number of hydrogens on surrounding atoms
multiple peaks equal to the number of surrounding carbon atoms
multiple peaks equal to the number of hydrogen on surrounding atoms, plus one
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
When placed in a magnetic field, all the random spins of the nuclei
stop
reverse direction
align with the magnetic field
rotate to 90° away from the induced field
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Better understanding of the nuclei is possible,
with the help of wavelength spectrum
with the help of frequencies ranges
with the help of a mathematical translator called the fourier transfer algorithm
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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