問題詳情
19. Which of the following carbonyl compounds may be made from 1,3-dithiane?I. Methyl vinyl ketone II. 2-Pentanone III. 3,3-Dimethyl-2-butanone IV. 2-Phenylethanal
(A) I and IV
(B) II only
(C) II and III
(D) II and IV
(E) III and IV
參考答案
答案：D
難度：適中0.466667
統計：A(1),B(2),C(2),D(7),E(0)
用户評論
【用戶】菩提
【年級】國三下
【評論內容】標準答案修正為 D