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Question

Iron is more reactive than copper. Can you write an activity to show this?

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Solution

To prove that iron is more reactive than copper:​

Steps:​

  • Take a solution of copper sulphate (blue). ​

  • Add some iron nails to it. ​

  • Leave it for about an hour.​

Observations:​

  • A brown coating is formed on the surface of iron ​

  • The color of copper sulphate solution has turned from blue to light green.​

Conclusion:​

  • Due to high reactivity of iron, it displaces copper and forms iron sulfate solution (light green).
    (Iron)Fe+(Copper sulphate)CuSO4
    (Iron sulphate)FeSO4+(Copper) Cu


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