1)Give the two oxidation states of iron
2)Give the main chief ore of iron and give their formula
3)Name the impurities present in the ores and give their formula
4)Name all the raw materials required in extraction of iron
1) The two oxidation states of iron are +2 and +3.
2) The main chief ore of iron is hematite, which has a chemical formula Fe2O3.
3) Some impurities present in iron ores include silica (SiO2), alumina (Al2O3), and phosphorus (P2O5).
4) The raw materials required in the extraction of iron include iron ore (hematite or magnetite), coke (fuel), limestone (flux), and air (oxygen).