Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.
Extraction of low reactive metals: Step 1: Concentration of ore by froth flotation Step 2: Conversion of metal sulphide to its oxide by heating with air Step 3: Decompositon of metal oxide into crude metal by stong heating Step 4: Electrolytic refining Extraction of medium reactive metals. Step 1: Concentration of ore by froth flotation. step 2: Coversion of metal sulphide to its oxide by roasting Step 3: Reduction of metal oxide to curde metal by heating with reducing agents like aluminium and carbon Step 4: Electrolytic refining.
