Question

define roasting and calcination. explain giving examples

Answer 1

Answer:

Roasting - The sulphide ore is converted into oxide is called Roasting

Calcination- The carbonate ore are converted into oxide is called calcination

Explanation:

Calcination Ex- Manufacture of lime from limestone

Roasting Ex- Zns may yield Zno

Answer 2

Roasting@@ It is the process in which sulphide pretty is strongly heated in the presence of air to convert it into metal oxide.

Calcination:: It is the process in which carbonate pretty is heated strongly in the absence of air to convert it into metal oxide..

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