When copper turnings are added to silver nitrate solution, a blue coloured solution is formed after sometime. It is because, copper

Options

A. Displaces silver from the solution
B. Forms a blue coloured complex with `AgNO_(3)`
C. Is oxidised to `Cu^(2+)`
D. Is reduced to `Cu^(2+)`

Answer

A, C

Explanation

`Cu` is above of `Ag` in electrochemical series and thus `Cu+2Ag^(+) rarr Cu^(2+)+2 Ag` reaction occurs and it displaces Ag from its salt solution.