Question

a few pieces of iron are dropped in a blue solution of copper sulphate

Answer 1

Fe + CuSO4 ----> FeSO4 + Cu
(Black) (Blue) (Light Green) {Reddish
brown}

Answer 2

Heyaa☺
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➡If a few pieces of iron are dropped in a blue solution of copper sulphate then the reaction takes place.

⚫Iron(Fe)

⚫Coppersulphate(CuSO4)

The equation of reaction is

⚫CuSO4 + Fe -------------->FeSO4 + Cu

The changes in this experiment are:-

➡The blue colour of coppersulphate turns into green colour.this is due to the reactivity.as Fe is more reactive than Cu.

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Hope you understand...✌

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