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    Combined Science GCSE

    Reagents and colour changes

    What Reagents and colour changes means in Combined Science GCSE, as defined for AQA.

    Definition of Reagents and colour changes

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    Reference: AQA

    Benedict’s solution, iodine solution and Biuret reagent each give a starting colour and a positive colour change when the nutrient they detect is present.
    AQA · The human digestive system (study guide)

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