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

The limestone used in the blast furnace during the extraction of iron         I    produces carbon dioxide       II    produces carbon monoxide      III    removes silica as a slagAI, II and IIIBI and III onlyCII and III onlyDIII only

Limestone is added to a blast furnace toAproduce carbon dioxideBproduce carbon monoxide Cremove slag from the iron ore Dremove silicon dioxide from the iron ore

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

​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)

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.