The solution of dilute HCl, dilute HNO3, ZnCl2, and H2O can be kept in the container made of copper. Since copper is a less reactive metal and is placed below the hydrogen in reactivity series. Hence it does not react with HCl, HNO3 ZnCl2, and H2O. While aluminum is highly reactive metal and can react with these solutions. Thus container made of copper is suitable to keep the given solutions.