Cambridge IGCSE Chemistry practice

Paper 4 structured question: Giant covalent structures

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Paper

Marks

Topic

Giant covalent structures

Exam-style question

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Paper 4Theory (Extended)1 marks

Silicon dioxide is commonly found in nature as quartz and is used in various applications.

Description

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

a
State the type of structure silicon dioxide has.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 4Theory (Extended)4 marks

Description

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

a
Describe the bonding in silicon dioxide and how it relates to its properties.
Your answer
Aim for approximately 4 distinct marking points.
[4]