Question

Iron nail dipped in copper sulphate solution compared before and after

Answer 1

When Iron nail (Ferrum) is dipped in Copper sulphate (CuSO4) there takes reaction between them and coppersulphate change its color from blue to light green. This shows Iron is more reactive than Copper, it can replace Copper from CuSO4. CuSO4 is in blue Color and FeSO4 is in light greencolor.

Answer 2

Explanation:

Explanation. When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. ... The iron passes into the solution as Fe (II) forming the ferrous sulphate solution.