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The total number of carbonate ores among the following is . (i)Argenitie (ii)Calamine (iii)Malachite (iv)Siderite (v)Galena (vi)Magnetite (vii)Dolomite (viii)Cassiterite (ix)Bauxite |
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Answer» Correct Answer - 4 (i)Argentite=`Ag_2S`.(ii)Calamine=`ZnCO_3` (iii)Malachite = `CuCO_3. Cu(OH)_2` (iv)Siderite = `FeCO_3` (v)Galena=PbS, (vi)Magnetite =`Fe_3O_4` (vii)Dolomite =`MgCO_3 CaCO_3` (viii)Cassiterite =`SnO_2` (ix) Bauxite =`Al_2O_3. 2H_2O` |
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