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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Group VII properties

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Group VII properties

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Paper 4Theory (Extended)3 marks

Consider the halogens and their applications.

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Applications of Halogens

Halogens are used in various applications, including disinfection, lighting, and pharmaceuticals. Chlorine is commonly used to purify water, while iodine is used in antiseptics.

  1. a

    Evaluate Evaluate the importance of chlorine and iodine in everyday applications.

    Aim for approximately 3 distinct marking points.

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Paper 4 structured question: Group VII properties

Paper 4Theory (Extended)3 marks

Description

Properties of Halogens

Halogens are found in Group VII of the periodic table. They include fluorine, chlorine, bromine, iodine, and astatine. As you move down the group, the reactivity decreases, and the melting and boiling points increase.

  1. a

    Analyse Discuss the trends in reactivity and physical state of the halogens as you move down the group.

    Aim for approximately 3 distinct marking points.

    [3]