IGCSE Chemistry 0620/21/O/N/21 Q8

Question

8 Which statement about carbon is correct?

A Diamond and graphite both have simple molecular structures.
B Diamond and graphite are both used to make cutting tools.
C Each carbon atom in diamond is bonded to three other carbon atoms.
D Graphite conducts electricity and has a giant covalent structure.

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Answer ( 1 )

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    2022-05-11T15:36:37+08:00

    A. Diamond and graphite both have giant molecule lattice structure.

    B. Diamond is used to make cutting tools, not graphite.

    C. Each carbon atom in diamond is bonded to 4 other carbon atoms.

    D. Graphite conducts electricity (due to delocalized electrons moving between layers) and has a giant covalent structure.

    Ans: D

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