3 D 4 None of the above EC0049 39 The following four colourless salt solutions are placed in separate test tubes and a strip of

Question

3 D 4 None of the above EC0049 39 The following four colourless salt solutions are placed in separate test tubes and a strip of Cu is placed in each solution Which solution finally turns blue 1 Zn NO3 3 KNO3 2 Mg NO3 4 AgNO3 FC0050 46

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