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N,N-Dimethylformamide (DMF) gives different patterns of signals for the methyl protons when its 1H NMR spectrum is recorded at different temperatures. Based on the above data, the calculated difference in the frequencies of the two methylsinglets, if the spectrum is recorded on a 300 MHz spectrometer, is _________ Hz.
Options:
A .  10
B .  20
C .  30
D .  40
Answer: Option C


-NA-



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