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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Giant covalent structures

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Giant covalent structures

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Paper 4Theory (Extended)4 marks

Silicon dioxide is used in glass making and as a semiconductor material.

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Silicon Dioxide in Industry

Silicon dioxide's properties make it suitable for use in various industrial applications, including glass production and electronics.

  1. a

    Describe the bonding in silicon dioxide and how it relates to its properties.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 4 structured question: Giant covalent structures

Paper 4Theory (Extended)1 marks

Description

Properties of Silicon Dioxide

Silicon dioxide (SiO2) is a solid at room temperature with a high melting point and is known for its hardness and chemical stability.

  1. a

    State the type of structure silicon dioxide has.

    Aim for approximately 1 distinct marking point.

    [1]