Question

Differentiate between roasting and calcination. Which of these two is used for Sulphur ores and why

Answer 1

Answer:

Explanation:

Roasting:

1)this method is used for obtaining oxide ore of a metal from its sulphide ore

2)in this method, the sulphide ore of a metal is heated strongly in presence of oxygen.

Calcination:

1)this method is used for obtaining the oxide ore of a metal from its carbonate ore.

2)in this method, the ore is heated in limited supply of oxygen.