Two ores A and B were taken. On heating ore A gives CO_2 whereas, | Filo
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Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

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Two ores A and B were taken. On heating ore A gives whereas, ore B gives .
What steps will you take to convert them into metals? 

Solution: When a carbonate ore is heated, we get carbon dioxide. A carbonate ore is calcinated to obtain oxide of the metal. Following equation shows calclnations of zinc carbonate. 

When a sulphide ore is roasted, we get Sulphur dioxide. Zinc sulphide is roasted to obtain zinc oxide. 
 
After any of the above steps; zinc oxide is reduced to obtain pure zinc. 
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general principles and processes of isolation of elements