Differentiate between calcination and roasting,giving example with well balanced chemical equation .
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Calcination-heating of a compound in limited or excess of air
Eg— 2Fe2O3——^—->4FeO+O2
Roasting -heating of a compound in excess of air
Eg—2FeS+3O2——^——->2FeO+2SO2
Eg— 2Fe2O3——^—->4FeO+O2
Roasting -heating of a compound in excess of air
Eg—2FeS+3O2——^——->2FeO+2SO2
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