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Grade: 12

                        

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

6 years ago

Answers : (1)

Aarti Gupta
askIITians Faculty
300 Points
							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

6 years ago
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