只用一種試劑即能將：Al3+與Fe3+，K+與Mg2+，Cu+與Ba2+，Ag+與Al3+四組中各對離子分離（即令一種離子沈澱但另一種離子留在溶液中）的是：(A) NaNO3(a

問題詳情

4. 只用一種試劑即能將：1.Al3+與Fe3+，2.K+與Mg2+，3.Cu+與Ba2+，4.Ag+與Al3+四組中各對離子分離（即令一種離子沈澱但另一種離子留在溶液中）的是：
(A) NaNO3(aq)
(B) NH3(aq)
(C) NaOH(aq)
(D) H2S(aq) 。

參考答案

答案：C
難度：困難0.3125
統計：A(0),B(7),C(5),D(1),E(0)

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