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^{++}} $ .



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