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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Fuels

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Fuels

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Paper 3Theory (Core)2 marks

The composition of petroleum is essential for various applications.

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Composition of Petroleum

Petroleum is a complex mixture primarily made up of hydrocarbons, including alkanes, cycloalkanes, and aromatic hydrocarbons.

  1. a

    Explain the significance of hydrocarbons in petroleum.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Fuels

Paper 3Theory (Core)2 marks

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Variability of Petroleum Composition

Different geological formations lead to variations in the types and proportions of hydrocarbons found in petroleum.

  1. a

    Discuss how the source of petroleum affects its composition.

    Aim for approximately 2 distinct marking points.

    [2]