Question

List two observations when iron nails are immersed in copper sulphate solution for
about 20 minutes.​

Answer 1

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 ${Fe}^{2 + }$ ions and ferrous sulphate solution is formed.

Answer 2

Answer:

xolur

Explanation:

colour change occurs i.e. it changes from blue to green colour.

displacement of metal occurs i.e. copper sulphate changes to iron sulphate and copper gets deposited.