What is the theory behind the chemical reaction of an iron nail with aqueous copper sulphate solution ?
CBSE Class X Science SA 1 ( 2 marks)
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Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement
reaction of one metal by another metal. Iron is placed above copper in the activity series. Elements
placed above in this series are more reactive than those placed below them. Thus, iron is more
reactive than copper. In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric
ion (Cu2+) is converted into metallic copper.
Fe(s) + Cu2+(aq) → Fe2+(aq) + Cu(s)
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Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal. Iron is placed above copper in the activity series. Elements placed above in this series are more reactive than those placed below them. Thus, iron is more reactive than copper. In this reaction, metallic iron is converted into ferrous ion (Fe2+) and cupric ion (Cu2+) is converted into metallic copper. Fe(s) + Cu2+(aq) → Fe2+(aq) + Cu(s)
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