A reddish brown coating of copper metal is applied to an iron nail. Copper is displaced from copper sulphate solution by an iron nail, resulting in ferrous sulphate, and the colour of copper sulphate fades.
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?