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The equation of reaction with CuSO4 solu...

The equation of reaction with `CuSO_4` solution and iron nail is given below.
`Fe+ CuSO_4 rarr FeSO_4 + Cu`
a) Write the reduction reaction taking place here?
b) Fe will displace Cu from `CuSO_4` solution. What is the reason?

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a)`Cu^2+ + 2e^ rarr Cu`
b) A more reactive element can displace a less inactive ele ment from its salt solution.
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