Question

An iron knife kept in blue copper sulphate solution turns the blue solution into light green explain

Answer 1

hope thia answer works.......

Answer 2

Iron is a more reactive metal than copper in the reactivity series. So when we keep the iron knife in the CuSo4 solution it will displace the copper from its solution and form its own solution that is FeSo4


CuSo4+Fe => FeSo4 + Cu