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Question

Extraction of zinc from zinc blende is achieved by :

A
Roasting followed by reduction with carbon
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B
Roasting followed by self reduction
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C
Roasting followed by reduction with another metal
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D
Electrolytic reduction
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Solution

The correct option is A Roasting followed by reduction with carbon
Extraction of zinc from zinc blende is achieved by roasting of ZnS to ZnO followed by reducing of ZnO using coke above 1000oC.
Roasting:
2ZnS+3O22ZnO+2SO2

Reduction with carbon :


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