Question

please give me answer​

Answer 1

Answer:

This happens cause iron displaces copper from copper sulphate and forms iron sulphate which is green in colour. Copper deposits as a brown coating on iron nail

Answer 2

Answer:

when iron nails are dipped in the solution of copper sulphate, it displaces copper ( which is less reactive than iron ) from the solution to form iron sulphate, which in turn results in the change in colour of the solution from blue to green

Explanation:

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