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The reaction 2ZnS + 3O2 to 2ZnO + 2SO2 i...

The reaction `2ZnS + 3O_2 to 2ZnO + 2SO_2` in the metallurgical process of zinc is called

A

roasting

B

smelting

C

cupellation

D

calcination

Text Solution

Verified by Experts

The correct Answer is:
A
The process of oxidising sulphide ores is known as roasting. In roasting, concentrated ore is roasted in the presence of excess of air at about 1200 K to convert ZnS into ZnO.
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