Question

When a copper wire is placed in a solution of `AgNO_(3)`, the solution acquirs blue colour. This is due to the formation of
A. `Cu^(2+)` ions
B. `Cu^(+)` ions
C. Soluble complexof copper with `AgNO_(3)`
D. `Cu^(-)` ion by the reduction of Cu

Answer 1

Correct Answer - A
Since, `Ag^(+)` ions are reduced to Ag and
`E_(Ag^(+)//Ag)^(o) gt E_(Cu^(++)//Cu)^(o)` Cu is oxidised to `Cu^(++)`.