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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Group VII properties

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Group VII properties

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Paper 3Theory (Core)3 marks

Understanding the reactivity of halogens is crucial for predicting chemical reactions.

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Reactivity of Halogens

The reactivity of halogens decreases down the group from fluorine to iodine.

  1. a

    Explain why chlorine can displace iodine from potassium iodide.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Group VII properties

Paper 3Theory (Core)1 marks

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Displacement Reaction of Halogens

When chlorine gas is bubbled through a solution of potassium bromide, a reaction occurs where chlorine displaces bromine.

  1. a

    State the products of the reaction between chlorine and potassium bromide.

    Aim for approximately 1 distinct marking point.

    [1]