Question

1 Which ore exhibits exothermicity in pyrometallurgical process during their combustion?
a.Copper
b.Sulphide
C. alluminium
d.sulphide​

Answer 1

Copper ore exhibits exothermicity in pyrometallurgical process during combustion

Explanation:

Pyrometallurgy is the process of extraction and purification of metals with the application of heat. Pyro means heat and metallurgy is extraction of metals from their ores. The process will involve many processes like roasting, smelting and refining. Roasting will transform sulfide ores into oxides, and the sulfur will escape as sulfur dioxide gas.

Pyrometallurgy will result in the extraction of metals or intermediate compounds or alloys from their ores. These products are further used in various industries for further processing.

Examples of elements extracted by pyrometallurgical process are iron, copper, zinc, chromium, tin, and manganese.

Option A, Copper is the answer.

Answer 2

• Copper(Cu)