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  4. Extraction of zinc from zinc blende is achieved by

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Q. Extraction of zinc from zinc blende is achieved by

IIT JEEIIT JEE 2007General Principles and Processes of Isolation of Elements

Solution:

Zinc blende contain $ZnS$ which is first roasted partially and then subjected to reduction with carbon
$ZnS+O_2 \rightarrow ZnO+SO_2$ Roasting
$ZnO+C \xrightarrow{\Delta} Zn+CO \uparrow $ Carbon reduction