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    Chemistry A-Level

    substitution

    What substitution means in Chemistry A-Level, as defined for AQA.

    Definition of substitution

    Check what you remember

    Read the wording for your board, then hide it and explain substitution in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    The chlorine replaces a hydrogen atom, and the hydrogen that leaves is carried away as hydrogen chloride.
    AQA · Chlorination of alkanes (study guide)

    Topics that use substitution

    Related terms

    Using substitution in the exam

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    All Chemistry A-Level terms