| ||
A.Fe | B.Fe和Mg | C.Cu和Fe | D.Mg和Fe |
A.滤渣中只有Ag |
B.滤渣中可能有Zn |
C.滤渣中一定有Zn和Ag |
D.滤渣中一定有Ag,可能有Zn |
A.①Cu+HCl ②Fe+Hg(NO3)2 ③Cu+Hg(NO3)2 |
B.①Fe+HCl ②Cu+HCl ③Fe+Hg(NO3)2 |
C.①Fe+HCl ②Fe+Hg(NO3)2 ③Cu+Hg(NO3)2 |
D.①Fe+HCl ②Cu+HCl ③Cu+Hg(NO3)2 |
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