Which of the Following Is Not True Regarding ¹H NMR

question 8

Multiple Choice

Which of the following is not true regarding ¹H NMR spectroscopy?

• A) a "downfield" peak appears at a lower value of d
• B) on a 300 MHz instrument, a proton that adsorbs irradiation at a frequency 900 Hz higher than the adsorption of TMS appears at d 3 ppm.
• C) d for a particular proton is independent of the magnetic field strength of the instrument used.
• D) "deshielding" leads to peaks at higher values of d

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