Question

why can copper not displace iron from iron sulphate solution?

Answer 1

hii there,...

The metals copper, silver gold and platinum are less reactive than hydrogen and they do not replace hydrogen from water or acid. Examples for metal-displacementreactions: Zinc can displace copperfrom copper sulphate solution andiron from ferrous sulphate solution. So zinc is more reactive than iron and copper.
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Answer 2

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Copper cannot displace iron from iron sulphate solution because copper is less reactive than iron .