Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores
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Firstly the sulphide ore is changed into metal oxide ore by roasting. secondly the metal oxide is heated and we get pure metal
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Metals low in activity series can be extracted from their ores using metals lying above them in activity series. A metal ore on reaction with another metal of high reactivity produces compound of more reactive metal and precipitating first metal and hence get extracted.
it is second method
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both of them have to be extracted by roasting...
2HgS+ 2O2 ===> HgO + SO2
2ZnS + 2O2 ===> 2ZnO + SO2
These oxides can be reduced with coke to form the metal which have to be refined
2HgS+ 2O2 ===> HgO + SO2
2ZnS + 2O2 ===> 2ZnO + SO2
These oxides can be reduced with coke to form the metal which have to be refined
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