Check the given materials and chemicals required for a chemical reaction and answet the question.
Material- Copper wire, iron nail, beaker or big test tube.
Chemicals - Ferrous sulphate solution and copper sulphate solutions.
How would identify that the reaction is carried out ?

Explanation

The reaction is carried out in the test tube where iron nail is kept in copper sulphate solution. This is because iron being more reactive than copper, iron diplaces copper from copper sulphate solution. The colour of copper sulphate changes from blue to light green due to formation of freeous sulphate and copper gets deposited on iron nail making it reddish brown in colour.
`underset("Iron")(Fe_((s))) + underset("Copper sulphate")(CuSO_(4(aq)))to underset("Ferrous sulphate")(FeSO_(4(aq)))+ underset("Copper")(Cu_((s)))`