1.Give reasons. (2) a) The colour of copper sulphate solution changes to green when the iron nail is dipped in it for some time.

1.Give reasons. (2) a) The colour of copper sulphate solution change

1.	1.Give reasons. (2) a) The colour of copper sulphate solution changes to green when the iron nail is dipped in it for some time.
Answer» Hello mate EXPLANATION: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.