問題詳情

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

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