What is the main source of heat in the iron extraction process of Iron in a blast furnace?1 markLimestoneIron oxides Hot airCoke

The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is :Fe2O3+CO→2FeO+CO2FeO+CO→Fe+CO2C+CO2→2COCaO+SiO2→CaSiO3

ron ore contains iron(III) oxide, Fe 2 O3 . A blast furnace is used to extract iron from Fe 2 O3 .Equations for some of the reactions in the blast furnace are shown.equation 1 C + O2 → CO2equation 2 CaCO 3 → CaO + CO2equation 3 CaO + SiO2 → CaSiO3(a) Equation 1 shows the combustion of carbon in the blast furnace.(i) Name the substance which provides the carbon for this reaction........................................................................................................................................ [1](ii) State the purpose of the combustion of carbon in the blast furnace.

describe the extraction of iron;

What is the purpose of feeding a mixture of iron oxides with limestone into the blast furnace?1 mark To reduce the temperatureTo remove acidic impuritiesTo supply heatTo increase efficiency

​describe the essential reactions in the blast furnace where each of the four raw materials (iron ore which is hematite, limestone which is calcium carbonate, carbon in the form of coke, air)