Question

Iron is more reactive than copper explain with an activity

Answer 1

Take copper sulphate sol in a beaker. It is blue in colour.
Add some iron nails to it.
After some time blue colour of copper sulphate dissapears and nails become brownish in colour.
In this reaction iron has displaced coper from coper sulphate sol and formed iron sulphate sol.
The copper gets deposited on iron nails.

Answer 2

To show that iron is more reactive than copper-

• At first prepare a solution of copper sulphate by dissolving copper sulphates crystals in water.
• We will get a blue colored solution.
• Now, keep an iron nail dipped in this solution.
• After sometime we will see that the colour of solution changes to dirty green and a reddish-brown powder sticks to the nail.
• Copper in copper sulphate is displaced by iron of the nail, and iron sulphate is formed which is green in colour.
• Thus, it shows that iron is more reactive than copper.

The reaction can be written as-

$\rm { Fe_{(iron)} + CuSO_{4(copper \: sulphate)} \longrightarrow FeSo_{4(iron \: sulphate)} + Cu }$