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    				| 1. | From which ore is aluminium extracted ? What are thestages in itsextraction (give onlynames ) ? | 
| Answer» Solution : Aluminium is EXTRACTED from bauxite ` (Al_(2)O_(3))`Stages in the extraction: (i) CONCENTRATION of ORE, i.e,conversion of bauxite into alumina . (ii) Electrolyticreduction of alumina. | |