Question

Heating pyrites in air to remove sulphur is known as - A. Roasting B. Calcination C. Smelting D. Fluxing.

Answer 1

Answer:

.this is the answer

Explanation:

a .roasting

.

.

.

Answer 2

Answer: Roasting

Explanation:

Roasting is the process of heating of sulphide ores in the presence of oxygen.

$2ZnS+3O_2\rightarrow 2ZnO+2SO_2$

Calcination is process of converting an ore into its oxide by heating either in a limited supply or in absence of air.

Smelting is a process of heating of ore in order to extract its base metal from it.

Fluxing is a process used to remove oxides from ores by using acidic or basic substances.