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2015-03-27T10:58:16+05:30

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The main function of roasting is to convert the ore into its metal oxide and remove volatile malter
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2015-03-27T11:21:01+05:30

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When the sulphide containing ore is heated in the presence of air it is converted into metal oxide. This method is called roasting
example,
2Zns+3o2 gives 2ZnO(s)+2SO2(g)
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