Copper container can be used to store
(A) Al2(SO4)3 solution (B) ZnSO4 solution
(C) FeSO4 solution (D) All of these
To determine which of the options (A) Al2(SO4)3 solution, (B) ZnSO4 solution, and (C) FeSO4 solution can be stored in a copper container, we need to consider the reactivity of copper with these solutions.
Copper is a relatively unreactive metal, but it can still react with certain solutions. In this case, we need to consider if copper will react with any of the salts mentioned in the options.
Option (A) Al2(SO4)3 solution: Copper does not react with aluminum sulfate (Al2(SO4)3), so it can be stored safely in a copper container.
Option (B) ZnSO4 solution: Copper is more reactive than zinc (Zn) and will displace it from its compound. This means that copper will react with zinc sulfate (ZnSO4). Therefore, storing zinc sulfate in a copper container is not recommended as it can cause the container to corrode.
Option (C) FeSO4 solution: Similarly, copper is also more reactive than iron (Fe) and will displace it from its compound. Copper will react with iron sulfate (FeSO4), so storing iron sulfate in a copper container is also not recommended.
Therefore, the correct answer is (A) Al2(SO4)3 solution, as it can be safely stored in a copper container. The other options, (B) ZnSO4 solution and (C) FeSO4 solution, should not be stored in a copper container due to potential reactivity and corrosion.