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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Alcohols

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3

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3

Marks

Topic

Alcohols

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Paper 3Theory (Core)3 marks

Ethanol combustion reactions are important in energy production.

Description

Ethanol Combustion

Ethanol can combust completely or incompletely, affecting the products formed and energy released.

  1. a

    Explain the difference between complete and incomplete combustion of ethanol.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Alcohols

Paper 3Theory (Core)1 marks

Description

Combustion of Ethanol

Ethanol burns in the presence of oxygen to produce carbon dioxide and water. The reaction can be complete or incomplete depending on the availability of oxygen.

  1. a

    State the products of complete combustion of ethanol.

    Aim for approximately 1 distinct marking point.

    [1]