Cambridge IGCSE Chemistry practice

Paper 3 structured question: Giant covalent structures

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Giant covalent structures

Exam-style question

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Paper 3Theory (Core)1 marks

Graphite and diamond are two forms of carbon with different structures and properties.

Description

Graphite is used as a lubricant and in electrodes, while diamond is used in cutting tools due to its hardness.

a
State one property of graphite that makes it suitable for use as a lubricant.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)3 marks

Description

Graphite is used in lubricants and electrodes, while diamond is used in cutting tools.

a
Explain how the structure of diamond contributes to its use in cutting tools.
Your answer
Aim for approximately 3 distinct marking points.
[3]