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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Extraction of metals

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Extraction of metals

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Paper 3Theory (Core)2 marks

Chemical reactions in iron extraction

Description

Chemical Reactions in Blast Furnace

In the blast furnace, hematite is reduced to iron. The main reaction involves carbon monoxide and iron(III) oxide.

  1. a

    Describe the chemical reaction that occurs when iron(III) oxide is reduced in the blast furnace.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Extraction of metals

Paper 3Theory (Core)3 marks

Description

Iron Extraction from Hematite

Iron is extracted from hematite (Fe2O3) in a blast furnace. The process involves the reduction of iron(III) oxide using carbon monoxide, which is produced from coke combustion.

  1. a

    Explain the process of extracting iron from hematite in a blast furnace.

    Aim for approximately 3 distinct marking points.

    [3]