Redox Reactions And Electrochemistry Ques 132
Question: When a copper wire is placed in a solution of $ AgNO_3 $ , the solution acquires blue colour. This is due to the formation of [Roorkee 1989]
Options:
A) $ C{u^{2+}} $ ions
B) $ C{u^{+}} $ ions
C) Soluble complex of copper with $ AgNO_3 $
D) $ C{u^{-}} $ ion by the reduction of $ Cu $
Show Answer
Answer:
Correct Answer: A
Solution:
Since, $ A{g^{+}} $ ions are reduced to Ag and $ E_{A{g^{+}}/Ag}^{o}>E_{C{u^{++}}/Cu}^{o} $ Cu is oxidized to $ C{u^{++}} $ .
