Question

Add nail in CuSo4 solution. the colour of Cuso4 disappears why?

Answer 1

Heya !

☆ here is your answer ☆

Blue colour copper sulphate when it is mixed with water it changes to white on heating .
If you add a drop of water again it will change to blue colour due to water of crystallization

Answer 2

hello mate
here's your answer
iron being more reactive displaces copper from it's sulphate solution thus giving rise to iron sulphate and copper

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