Question

Iron is more reactive than copper.can you right an activity to show this

Answer 1

Put some iron nails in a solution of Copper sulphate(blue in color). After some time you will see that the solution gets decolourised to green colour. It is due to the fact that, iron has displaced copper from the solution and formed ferrous sulphate( green in colour). Thus, this shows that iron is more reactive than copper.

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-

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

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