Which of the following statements is/are correct? A. Iron can replace zinc from zinc sulphate solution. B. Zinc can replace copper from copper sulphate solution. C. Copper can replace Iron from Iron sulphate solution.

According to the reactivity series, Zinc > Iron > Copper. So Zinc can displace copper from copper sulphate (B is correct). Iron is less reactive than zinc, so it cannot displace zinc from zinc sulphate (A is incorrect). Copper is less reactive than iron, so it cannot displace iron from iron sulphate (C is incorrect).