Question

what happens when an iron nail is placed in a copper sulphate solution?​

Answer 1

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.

Explanation:

Answer 2

Explanation:

Iron nails lose their shiny appearance because an insoluble layer of copper is formed on the nails, Meanwhile, the solution,CuSO

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loses its blue color because of the formation of FeSO

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. This reaction is called displacement reaction in which the reactive element Iron, Fe has displaced less reactive Copper from its solution, The chemical equation can be written as:

Fe+CuSO

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→Cu+FeSO

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