Question detail

Why does graphene conduct electricity?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Structure and bonding of carbon

Question

A. It has delocalised electrons
B. It has a high melting point
C. It is a giant covalent structure
D. It contains positive ions

Answer

The correct option is It has delocalised electrons. This answer is correct because it matches the approved learning objective to explain the properties of graphene in terms of its structure and bonding in the subtopic Graphene and fullerenes.

Explanation

The correct option is It has delocalised electrons. It has delocalised electrons is correct because it directly supports the approved learning objective to explain the properties of graphene in terms of its structure and bonding. This belongs to the subtopic Graphene and fullerenes within Structure and bonding of carbon, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Graphene and fullerenes.

Common mistake

Misunderstanding Graphene's Conductivity

Students often state that graphene conducts electricity because it has a high number of carbon atoms.

Students should explain that graphene conducts electricity due to the presence of delocalised electrons that can move freely within its structure.

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