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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

Hydrocarbons are widely used in various industries.

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Hydrocarbons in Industry

Hydrocarbons are essential in the production of fuels, plastics, and chemicals. They can be found in natural gas, oil, and coal.

  1. a

    Explain the significance of hydrocarbons in energy production.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Fuels

Paper 3Theory (Core)1 marks

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Classification of Hydrocarbons

Hydrocarbons can be classified as saturated or unsaturated based on the types of bonds between carbon atoms.

  1. a

    Define saturated hydrocarbons and provide an example.

    Aim for approximately 1 distinct marking point.

    [1]