Question

Q.34. When we add iron nail to
copper sulphate solution, why
does the colour of solution
change to green?​

Answer 1

Answer:

this is your answer. l hope this answer will satisfy you.

Answer 2

Answer:

when we add iron nails into copper sulphate solution, the colour of the solution changes .This is because when we do this displacement reaction takes place .

Iron is more reactive than copper, and it displaces copper from its salt solution.

Fe + ﹰCuSo4 = FeSo4 +ﹰCu