Which of the Following Is Not True Regarding ¹H NMR

question 60

Multiple Choice

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

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

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