Why does the colour of copper sulphate solution change when an iron nail is dipped in it?

Why does the colour of copper suphate solution change when an iron nail is dipped in it ? Write the chemical equation.

The colour of copper sulphate solution changes when an iron nail is dipped in it. State the reason giving chemical equation for the reaction involved.

Why blue color of copper sulphate solution disappear when iron nail is immeresed in it?

Blue colour of copper sulphate solution is discharged by dipping an iron rod in it.

Assertion : Colour of copper sulphate changes when an iron nail is kept in it . Reason : copper is displacement by iron and iron sulphate is formed .

What is the reason for the change in colour of copper sulphate when iron nail is kept on it ?

What changes do you observe in the iron nails and colour of copper sulphate solution if the nails are dipped in CuSO_(4) solution for 15 minutes ?