Skip to content
    Chemistry A-Level

    lowest locants

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

    Definition of lowest locants

    Check what you remember

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

    Reference: AQA

    Numbering the chain from whichever end gives the lower locant to the functional group first and then to the substituents.
    AQA · Nomenclature (study guide)

    Topics that use lowest locants

    Related terms

    Using lowest locants in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Chemistry questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Chemistry A-Level terms