問題詳情
76. For the stepwise dissociation of aqueous H3P04, which of the following is not a conjugate acid-base pair? _
(A)HPO4 2-andPO43-
(B) H3PO4, and H2PO4-
(C)H2P04- andHP04 2-
(D)H2PO4- and Po43-
(E) H3O+ and H20
參考答案
答案：D
難度：適中0.666667
統計：A(1),B(0),C(0),D(2),E(0)