Question

Iron is more reactive than copper. Describe an experiment to prove this.
plz answer ​

Answer 1

Take some Iron fillings and dip them in the Copper sulphate solution. After some time you will notice that there is a colour change in the solution which is caused due to the displacement of Copper from it solution. This shows that Iron is more reactive than Copper.

Answer 2

answer :

You will observe that the reaction has occurred in the test tube containing iron nail and copper sulphate solution. Iron takes the sulphate away from copper. ... In such a reaction, the more reactive metal displaces the less reactive metal. Thus, the above activity shows that iron is more reactive than copper.

Explanation:

1. To prove that iron is more reactive than copper, the solution of copper sulfate is taken. Some iron nails are added to it. Later, it is observed that a brown coating is formed on the surface of iron and the color of copper sulfate solution has turned to light green from blue. This is due to high reactivity of iron which displaces the copper ions from its solution and forms ferrous sulfate solution.
2. Iron is high on the reactivity series while copper is present below it.So iron can displace copper easily from its salt solution by showing a change in the color of the solution.

Fe(s)+CuSO 4

(aq)→FeSO 4

(aq)+Cu(s)