問題詳情

43. Protons Ha and Hb in the following compound are?  CH3Ha Hb CH3
(A) homotopic
(B) enantiotopic
(C) diastereotopic
(D) mesotopic
(E) None of the above

參考答案

答案:B
難度:適中0.4
統計:A(0),B(2),C(1),D(0),E(0)

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