Giving examples, differentiate between roasting and calcination

cbse
isolationofelements

#1

Difference between roasting and calcination
Roasting: 1.Ore is heated in the excess of air.
2.This is used for sulphide ores.
3.$S{{O}{2}}$ is produced along with metal oxide.
4.e.g.
Calcination: 1.Ore is heated in the absence or limited supply of air.
2.This is used for carbonate ores.
3.$C{{O}
{2}}$ is produced along with metal oxide.
4.e.g.