問題詳情
65. How many positive and negative peaks appear in the DEPT-135 and in the DEPT-90 spectrum of 2-methylpentane?
(A) DEPT-135: two positive and one negative, DEPT-90: one positive
(B) DEPT-135: three positive and two negative, DEPT-90: one positive
(C) DEPT-135: three positive and two negative, DEPT-90: no signals
(D) DEPT-135: two positive and three negative, DEPT-90: two positive
(E) None of the above is correct
參考答案
答案：B
難度：適中0.5
統計：A(1),B(4),C(0),D(1),E(0)