Question

What happens when iron nails are added to copper
sulphate solution. Write the chemical equation also.​

Answer 1

Explanation:

The copper sulphate solution is blue in colour, when iron nails are added to it iron being more reactive than copper displaces copper from copper sulphate and the solution turns green. The displaced copper deposits on the nails.

Fe + CuSo4 = FeSo4 + Cu

Answer 2

Answer:

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.

or

Chemical reaction of iron nail with copper sulphate solution in water. Iron displaces copper ions from an aqueous solution of copper sulphate. ... In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2 +) is converted into metallic copper. Fe (s) + Cu2 + (aq) —→ Fe2+ (aq) + Cu (s).