阿摩線上測驗
79. Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sample is placed in a 100 MHz instrument, where does the signal appear?
(A) 8.33 ppm
(B) 3.18 ppm
(C) 5.30 ppm
(D) cannot be determined from information given
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統計： A(0), B(0), C(0), D(1), E(0) #4042060
統計： A(0), B(0), C(0), D(1), E(0) #4042060
