Extraction of Iron

What is the name of the Iron ore?

• Iron Chloride

• Bauxite

• Hematite

• Iron Pyrite

The diagram shows the blast furnace used in the extraction of Iron. The furnace is loaded with the 'Charge' which consists of

• Calcium Oxide, Coke and Iron Ore

• Calcium Carbonate, Coke and Iron Chloride

• Calcium Carbonate, Coke and Iron Ore

• Calcium Oxide, Coke and Iron Ore

One of the major impurities in the iron ore is....

• Silica, SiO₂

• Sulfur, S

• Calcium Silicate, CaSiO₃

• Carbon

The iron produced from the extraction process flows to the bottom of the furnace and is then tapped off because....

• The temperature of the furnace is lower than the melting point of iron

• The temperature of the furnace is higher than the melting point of iron

The impurities in the iron ore will be reacted with Calcium Oxide to produce...

• Sulfur dioxide

• Calcium Silicate

• Calcium Carbonate

• Silica

Calcium Carbonate (Limestone) is converted to Calcium oxide through which reaction

• Nautralisation

• Displacement

• Thermal Decomposition

• Exothermic

Iron ore(Iron(III) Oxide) is reduced by carbon monoxide through the following reaction..

• Fe₃O₂ + CO ---> 2Fe + 3CO₂

• Fe₂O₃ + 3CO ---> 2Fe + 3CO₂

• Fe₃O₂ + C ---> 2Fe + 3CO₂

• Fe₂O₃ + CO ---> 2Fe + 3CO₂

The following gases are useful when extracting Iron from its ore.

• Carbon Dioxide

• Oxygen

• Carbon Monoxide

• Sulfur Dioxide