阿摩線上測驗
36. An aqueous solution containing Ba2+, Pb2+, Cu2+, C3+ and Hg22+ ions is treated by HCI, H2S and NaOH solution in sequence. Which ion will not precipitate out of the solution?
(A) Ba2+
(B) Pb2+
(C) Cu2+
(D)Cr3+
(E) Hg22+
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統計： A(3), B(0), C(0), D(0), E(0) #3180687
統計： A(3), B(0), C(0), D(0), E(0) #3180687
