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CAIE IGCSE Chemistry Giant Covalent Diamond and Graphite

Practise describing diamond and graphite as giant covalent forms of carbon, including their carbon bonding counts and graphite's layered hexagonal arrangement.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • identify diamond and graphite as allotropes of carbon with giant covalent structures
  • state that each carbon bonds to four others in diamond but three others in graphite
  • describe graphite as layers of hexagonal carbon rings joined by strong covalent bonds

2.6.1—Giant covalent structures of graphite question 1

[Maximum number: 1]

Carbon is an element which exists in different forms.

Name two forms of the element carbon that have giant covalent structures. and

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