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Which one of the following is not a method of concentrain of ore?A. electromagnetic separationB. smeltingC. gravity separationD. froth floatation process

Answer» Correct Answer - B
In smelting the concentrated oxide ores like haematite, tin stone even after concentration, is heated with flux to remove the acidic or basic impurities froming the slag. All other processes are used fro removing the earth//siliceous impurities.


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