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 ?

Minerals from which metals can be extracted economically and easily ar

1.	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 ?
Answer» `2Cu FeS_2+4O_2toCu_2S+2FeO+3SO_2` `FeO+SiO_2toFeSiO_3` `2FeS+3O_2to2FeO+2SO_2` `Cu_2S+2Cu_2Oto6Cu+SO_2` SOLUTION :The reaction occurs during ROASTING in reverberatory furnace at moderate temperature in PRESENCE of air.