Question

why does the colour of Coppe
sulphate solution Change
when on 9
iron nail I
dropped in it
what does the mean​

Answer 1

Answer:

When a iron nail immersed in the solution of copper sulphate than iron displaces from the solution of copper sulphate because iron is more reactive than copper . Therefore copper sulphate solution colour changes from light blue to pale green colour.

Explanation:

It means copper is less reactive than iron . So the high reactive metal displaces the low reactive metal