When a copper wire is placed I a solution of `AgNO_3`, the solution acquires blue colour. This due to the formation of .

Options

A. `Cu^(2+)` ions
B. `Cu^(2+)` ions
C. Soluble complex of coopper with `AgNO_3`
D. `cu^(-)` ion by the reduction of Cu

Answer

A

Explanation

Since, `Ag^(+)` ions are reduced to Ag and
`E_(Ag^(+)//Ag)^@ gt E_(cu^(++)//Cu)^@ Cu` is oxidized `Cu^(++)`.