Question

You are provided with two containers made up of copper and aluminium.You are also provided with solutions of dil.HCL,dil.HNO3, Zncl2 and H2O.In Which of the above containers,these solutions can be kept?

Answer 1

Copper is less reactive than aluminium. So they can be kept in it.

Answer 2

Copper container:

1.HCl can be kept as no reaction takes place due to lower reactivity of copper.

2.HNO3 can be kept as no reaction takes place due to low reactivity of copper than hydrogen.

3. ZnCl2 can be kept as Zn is placed above copper in reactivity series of metal and hence no reaction occurs.

4. H2O can be kept due to the above reasons.

Aluminium container:

1. HCl cannot be kept as aluminium being more reactive than hydrogen displaces it from its solution and reaction occurs.

2. HNO3 cannot be kept as aluminium being more reactive than hydrogen displaces it from its solution and reaction occurs.

3. ZnCl2 cannot be kept as aluminium being more reactive than zinc displaces it from its solution and reaction occurs.

4. H2O:Aluminum does not react with cold or hot water and hence water can be kept in aluminium container