問題詳情

3.For each compound below, which one will give 3 signals in its normal, broadband decoupled 】JC NMR spectra, (assume the resolution is good to identify all different signal) ’  
(A) I, n, m
(B)II,m
(C)ni,IV,V
(D)m,V
(E)Noneoftheabove

參考答案

答案:B
難度:困難0.333333
統計:A(1),B(2),C(0),D(1),E(1)

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