Question

Apply your knowledge. An iron nail is placed in copper sulphate solution and taken in the

beaker. Observe it for some changes. Find the changes that takes place. Why ?​

Answer 1

Answer:

When an iron nail is placed in a beaker containing Copper sulphate solution, after some time we will observe that the blue colour of the solution fades and eventually turns into light green due to the formation of Ferrous sulphate.

Fe(iron) + CuSO4(blue solution)—> FeSO4(green solution)+ Cu(brown/red copper deposit)

Hope it helps :)

Answer 2

Answer:

Fe(s)+CuSO4⟶Cu(s)+FeSO4

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green. This reaction shows that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as Fe2+ ions and ferrous sulphate solution is formed.