Iron fillings are put in different test-tubes A, B, C and D containing

1.	Iron fillings are put in different test-tubes A, B, C and D containing ZnSO4, CuSO4, AI2(SO4)3, CaCl2 solutions respectively. In which of the following test-tubes change will be observed?
Answer» In test-tube B change will be observed because iron is more reactive than copper and it will displace Cu from CuSO₄. CuSO₄ + Fe → FeSO₄ + Cu.

Iron fillings are put in different test-tubes A, B, C and D containing ZnSO4, CuSO4, AI2(SO4)3, CaCl2 solutions respectively. In which of the following test-tubes change will be observed?

Answer»

In test-tube B change will be observed because iron is more reactive than copper and it will displace Cu from CuSO₄.

CuSO₄ + Fe → FeSO₄ + Cu.