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The following four colourless salt solutions are placed in separate test tubes and a strip of a copper is placed in each.Which of the following solutions will finally turn blue and why? a)NaCl b)AgNO3 c)ZnSO4 d)Cd(NO3)2

The following four colourless salt solutions are placed in separate test tubes and a strip of a copper is placed in each.Which of the following solutions will finally turn blue and why? a)NaCl b)AgNO3 c)ZnSO4 d)Cd(NO3)2

Grade:12

1 Answers

Aarti Gupta
askIITians Faculty 300 Points
10 years ago
AgNO3 will finally turns blue as silver nitrate reacts with copper to form hairlike crystals of silver metal and a blue solution of copper nitrate will formed.

2 AgNO3 + Cu ? Cu(NO3)2 + 2 Ag

Thanks & Regards

Aarti Gupta

askiitians Faculty

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