Question

Thin strips of magnesium, copper and iron are taken.
$\left(a\right)$ Write down what happens when these metals are treated as follows
$\left(iii\right)$ Added to an aqueous solution of Zinc sulphate

Answer 1

• Magnesium is placed above zinc in reactivity series
• Iron and Copper are present below zinc in reactivity series

When magnesium, copper and iron are treated with $ZnS{O}_4$ solution, only magnesium shows the displacement reaction because $Mg$ is present above zinc in reactivity series.
Chemical reaction:
Others wont's give any reaction when treated with an aqueous solution of zinc sulphate because they are present below zinc are reactivity series.