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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Group I properties

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Group I properties

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Paper 4Theory (Extended)4 marks

Understanding the behavior of Group I elements is crucial for predicting their reactions.

Description

Reactivity of Group I Elements

Group I elements react with water and halogens to form hydroxides and salts.

  1. a

    Explain why Group I elements are more reactive than Group II elements.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 4 structured question: Group I properties

Paper 4Theory (Extended)3 marks

Description

Properties of Group I Elements

Group I elements are soft, have low melting points, and react vigorously with water.

  1. a

    Describe the general trends in reactivity and melting points of Group I elements.

    Aim for approximately 3 distinct marking points.

    [3]