1.

Inthecyanideextraction processof silverfrom argentiteore,the oxidisingandreducing agentsusedare

Answer»

` O_ 2andCO`RESPECTIVELY
` O_ 2and ZN `dustrespectively
` HNO_3 andZn `dust respectively.
` HNO _ 3and CO`respectively.

Solution : ` O_ 2`oxidises`Na_ 2 S `formedinthereactionto` Na_2 SO_ 4`and Znreduces` Ag^(+) ` to metallicAg.


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