Question

what is obeserved after about 1 hour of adding the strips of copper and aluminium separately to ferrous sulphate solution filled in two beakers? Name the reaction if any change in colour is noticed. Also, write chemical equation for the reaction.​

Answer 1

(i) When we add copper strip in ferrous sulphate no change will be seen after 1 hour as copper is lessreactive than iron and unable to displace iron from its salt solution.

FeSO4+ Cu-------> NO REACTION

(ii) When we add aluminium strip in ferrous sulphate solution than aluminium will displace iron from its solution being more reactive than iron.

3FeSO4+ 2Al-------> Al2(SO4)3+ 3Fe

Also, the green colour of the solution changes to colourless.

The name of the this reaction is displacement reaction.

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