1. Which of the following is false about NMR (Nuclear Magnetic Resonance)? A. Th

Question

1.     Which of the following is false about NMR (Nuclear Magnetic Resonance)?

A.     The energy required to flip the spin of a proton is in the microwave region of the electromagnetic spectrum.

B.           B.  The frequency of a given peak varies depending on the strength of the magnetic field (e.g. 200 MHz versus 800 MHz).

Which statement is the false statement regarding the adjacent structure Protons Hi and Hh are exchangeable in the presence of D20. Hd is the only diastereotopic proton on the molecule. Ha is the most deshielded proton on the molecule. Under normal circumstances, proton He will show up as a doublet. The chemical shift for Hh depends on the concentration of the molecule in solution.

Explanation / Answer

d

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