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     EduGorilla 
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    Which of the following series of steps correctly represents the extraction of metals of low reactivity from ores?

    Options :-

    1. Ore Concentration of ore Sulphide ore Roasting Oxide of metal  Auto-reduction  Purification of metal 
    2. Ore Concentration of ore Oxide of metal Sulphide ore Roasting Reduction of metal Purification of metal
    3. Ore Concentration of ore Oxide of metal Carbonate ore Sulphide ore Reduction of metal Purification of metal
    4. Ore Concentration of ore Roasting Sulphide ore Oxide of metal  Auto-reduction  Purification of metal
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