how stop extracted from its sulphide ore give eqn
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SULPHIDE ORES ARE HEATED IN THE PRESENCE OF OXYGEN TO GET THE OXIDE ORE AND SULPHUR DIOXIDE AS PRODUCTS.
THEN THE OXIDE ORE IS TREATED WITH A REDUCING AGENT TO GET THE REQUIRED METAL.
EG---2ZNS +3O2 ON HEATING GIVES 2ZNO +3SO2
ZNO+C. GIVES ZN+CO2
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