A Zinc granule changes the colour of ferrous sulphate and an iron nail changes the blue colour of copper sulphate

A Zinc granule changes the colour of ferrous sulphate and an iron nail changes the blue colour of copper sulphate. Arrange the metals in decreasing order of reactivity. Give the chemical equations for the reactions also.

The decreasing order of reactivity is :
Zn > Fe > Cu.

The chemical equations are as follows:

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