Question

(ii) The blue colour of CuSO4 changes to
the formation of ferrous sulphate.
due to​

Answer 1

Answer:

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

Explanation:

hope you have understood

Answer 2

Answer:

due to electrons

Explanation:

because Cu is positive

and SO4 is negitive