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    Chemistry GCSE

    Functional group

    What Functional group means in Chemistry GCSE, as defined for Pearson Edexcel.

    Definition of Functional group

    The part of a molecule that determines its chemical reactions (e.g., the C=C double bond in alkenes).
    Pearson Edexcel · Separate chemistry 2 (study guide)

    Topics that use Functional group

    Related terms

    Using Functional group in the exam

    Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.

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