Question

How is zinc obtained from sulphide and carbonate ores? Differentiate between the two giving chemicals reactions

Answer 1

hope it will help you

Answer 2

Answer: Zinc is extracted by the process of roasting from sulfide ore and from the carbonate ore, the process used is calcination.

Explanation:

Zinc is the metal which is present in the middle of the reactivity series. It is found in the ores of its sulfides or carbonates.

• Extraction of Zinc from its sulfide ore:

Zinc sulfide is oxidized to zinc oxide by a process of roasting. In this process, oxygen is supplied in high amounts. The gas released is sulfur dioxide.

$2ZnS(s)+3O_2(g)\rightarrow 2ZnO(s)+2SO_2(g)$

This oxide is further reduced with Coke.

• Extraction of Zinc from its carbonate ore:

Zinc carbonate is oxidized to zinc oxide by a process of calcination. I n this process, oxygen is supplied in limited amount. the gas released is carbon dioxide.

$2ZnCO_3(s)\rightarrow ZnO(s)+CO_2(g)$

The oxide obtained from both the ores, is now reduced with the help of coke. The reaction follows:

$ZnO(s)+C(s)\rightarrow Zn(s)+CO(g)$