Redox Reactions And Electrochemistry Ques 490

Question: When copper turnings are added to silver nitrate solution, a blue coloured solution is formed after some time. It is because, copper [CPMT 1974, 79; DPMT 2000]

Options:

A) Displaces silver from the solution

B) Forms a blue coloured complex with $ AgNO_3 $

C) Is oxidised to $ C{{u}^{2+}} $

D) Is reduced to $ C{{u}^{2+}} $

Show Answer

Answer:

Correct Answer: C

Solution:

Cu is above of Ag in electrochemical series and thus $ Cu+2A{{g}^{+}}\to C{{u}^{2+}}+2Ag $ reaction occurs.



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