why does the colour of copper sulphate solution changes when iron nail is dipped in it?
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because iron is more reactive than copper so, iron displace copper from copper solution.
It is a type of displacement reaction.
It is a type of displacement reaction.
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When an iron nail is dipped in copper sulphate solution , the displacement reaction takes place . The colour of copper sulphate solution fades due to the formation of light green solution of iron sulphate .
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