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.
