PrepWisePrepWiseGiant Covalent Structures
Bonding & StructureExam Focus

Exam Focus

Part of Giant Covalent Structures · GCSE GCSE Chemistry revision

This exam focus covers Exam Focus within Giant Covalent Structures for GCSE Chemistry. Revise Giant Covalent Structures in Bonding & Structure for GCSE Chemistry with 21 exam-style questions and 21 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 10 of 12 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.

Topic position

Section 10 of 12

Practice

21 questions

Recall

21 flashcards

🎯 Exam Focus

Frequently Examined

Giant covalent structures are a high-frequency topic. The diamond/graphite comparison is a classic question:

  • Compare diamond and graphite — structure, properties, and explain the differences (4-6 marks)
  • Explain why giant covalent structures have high melting points — reference covalent bonds being broken (2 marks)
  • Explain why graphite conducts electricity — delocalised electrons moving along layers (2 marks)
  • Identify the structure from given properties — very high MP + conducts = graphite (1 mark)
  • Higher tier: Fullerenes/graphene — structure and uses in medicine, electronics (2-3 marks)

Edexcel 1CH0: Examined in Paper 1 (1CH0/1). The diamond vs graphite comparison is a staple Edexcel question — students must explain why diamond is hard (four covalent bonds, tetrahedral structure) and why graphite conducts electricity (delocalised electrons between layers). Fullerenes and graphene uses are also examined at higher tier. In Edexcel-style questions, the command word "Suggest" appears frequently — use your chemistry knowledge to apply to an unfamiliar context.

Keep building this topic

Read this section alongside the surrounding pages in Giant Covalent Structures. That gives you the full topic sequence instead of a single isolated revision point.

Memory AidsExam Tips for Giant Covalent StructuresDiamond Structure — Click to ExploreGraphite Structure — Layered Giant Covalent

Practice Questions for Giant Covalent Structures

Why do giant covalent structures have very high melting points?

  • A. They contain ionic bonds that are difficult to break
  • B. They contain weak forces between separate molecules
  • C. They contain delocalised electrons that require a lot of energy to remove
  • D. They contain many strong covalent bonds that require a lot of energy to break
1 markfoundation

Explain why graphite conducts electricity but diamond does not.

3 marksstandard

Quick Recall Flashcards

What are fullerenes?
Hollow carbon cages (like C₆₀) — used to deliver drugs in medicine
What is graphene?
A single layer of graphite — extremely strong, conducts electricity

21 questions on Giant Covalent Structures — practise free

Instant marking, adaptive difficulty, and 21 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

Previous

Memory Aids

Next

Exam Tips for Giant Covalent Structures