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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Giant covalent structures

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3

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3

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Topic

Giant covalent structures

Exam-style question

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Paper 3Theory (Core)3 marks

Understanding the differences between graphite and diamond.

Description

Graphite vs Diamond

Both graphite and diamond are forms of carbon, but they have different structures and properties.

  1. a

    Describe the structure of diamond and explain why it is hard.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Giant covalent structures

Paper 3Theory (Core)1 marks

Description

Properties of Graphite and Diamond

Graphite is used in pencils and as a lubricant, while diamond is used in cutting tools and jewelry. Graphite conducts electricity, but diamond does not.

  1. a

    State one property of graphite that makes it suitable for use in pencils.

    Aim for approximately 1 distinct marking point.

    [1]