Question

What happens when iron fillings are added to copper sulphate solution?

• A. Light deep blue solution of iron sulphate is obtained.
• B. There will be no change in the colour of the copper sulphate solution.
• C. Light green solution of iron sulphate is obtained.
• D. A grey coating of copper metal is formed on the surface of iron nail.

Answer 1

The correct option is C

Light green solution of iron sulphate is obtained.

Iron metal is more reactive than copper and displaces it from copper sulphate solution (CuSO4). The deep blue colour of copper sulphate solution fades due to the formation of light green solution of iron sulphate.