問題詳情

12.Which of the following is the general formula of the alkynes？
(A)CnH2n+2　
(B)CnH2n　
(C)CnH2n-2　
(D)CnHn

參考答案

答案：C
難度：適中0.592593
統計：A(4),B(5),C(16),D(0),E(0)