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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Terminology

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Terminology

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Paper 3Theory (Core)3 marks

The stability of organic compounds is influenced by their saturation.

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Saturated vs Unsaturated Compounds

Saturated compounds have only single bonds, while unsaturated compounds have one or more double or triple bonds. This difference affects their reactivity and stability.

  1. a

    Compare the reactivity of saturated and unsaturated compounds.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Terminology

Paper 3Theory (Core)1 marks

Description

Saturated Compounds

Saturated compounds consist of molecules where all carbon-carbon bonds are single bonds. This structure allows for the maximum number of hydrogen atoms to be attached to each carbon atom.

  1. a

    Define the term 'saturated compound'.

    Aim for approximately 1 distinct marking point.

    [1]