Question

You are provided with two containers made up of aluminium and copper .you are aldo provided with solution of dilute HCL,HNO3,ZnCl2 and H2O. In which of the above containers theses solution can be kept?

Answer 1

Copper container because H in Hcl,HNO3,H2O is more reactive than copper and copper will not displace them and Zinc in Zncl2 is also more reactive than copper and copper cannot displace it

Answer 2

Answer:

HERE IS YOUR ANSWER MATE

Explanation:

(A) When solutions are kept in copper container

(i) Dilute HCl, Copper does not react with dilute HCl. Therefore, it can be kept.

(ii) Dilute HNO3, Nitric acid acts as a strong oxidizing agent and reacts with copper vessel, therefore

cannot be kept.

(iii) ZnCl2. Zinc is more reactive than copper (Cu) therefore, no displacement reaction occurs and hence

can be kept.

(iv) H2O, Copper does not react with water therefore it can be kept.

(B) When solutions are kept in aluminium containers

i) Dilute HCI, Aluminium reacts with dilute HCl to form its salt and hydrogen is evolved. Therefore,

cannot be kept. 2Al + 6HCl → 2AICl3 + 3H2.

(ii) Dilute HNO3, Aluminium gets oxidised by dilute HNO3 to form a layer of Al2O3 and cannot be kept.

(iii) ZnCI2, Aluminium being more reactive than zinc can displace zinc ion from the solution. Therefore,

the solution cannot be kept. 2Al + 3ZnCl2 → 2AlCl3+ 3Zn

(iv) H2O, Aluminium does not react with cold or hot water. Therefore, water can be kept while

aluminium is attacked by steam to form aluminium oxide and hydrogen

2Al(s) + 3H2O(g) → Al2O3(s) + 3H2(g).