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  4. Zinc is extracted from zinc blende by

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Q. Zinc is extracted from zinc blende by

General Principles and Processes of Isolation of Elements

Solution:

Zinc is extracted from zinc blende by carbon reduction process
$2ZnS + 3O_2 \to 2ZnO + 2SO_2$
$ZnO + C \xrightarrow{1673\,K} Zn + CO$