問題詳情

15. What is the coupling constant for the Ha and Hb protons in the 1H NMR spectra of the following compound? 

 
(A) 0 Hz
(B) 3 Hz
(C) 7 Hz
(D) 10 Hz
(E) 15 Hz

參考答案

答案：E
難度：簡單0.833333
統計：A(0),B(0),C(0),D(1),E(5)