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Minerals from which metals can be extracted economically and easily are called ores.The extraction of metals from theirs ores involves the following processes. (i)Concentration. (ii)Calcination | roasting | leaching . (iii)Reduction. It is carried out be one of the following methods. Which of the following reactions reactions does not occur in Bessemer converter in the extraction of copper from chalcopyrites ?A. `2Cu FeS_2+4O_2toCu_2S+2FeO+3SO_2`B. `FeO+SiO_2toFeSiO_3`C. `2FeS+3O_2to2FeO+2SO_2`D. `Cu_2S+2Cu_2Oto6Cu+SO_2` |
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Answer» Correct Answer - A The reaction occurs during roasting in reverberatory furnace at moderate temperature in presence of air. |
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