Which one of the following statements is correct about diamond and graphite?
- A.Diamond and graphite have similar physical and chemical properties.
- B.Diamond is hard but graphite is smooth and slippery.
- C.Diamond and graphite are both non-conductors of electricity.
- D.Both diamond and graphite have similar structures.
Show answer
Both are pure forms of carbon, but their atoms are arranged differently, which gives them opposite physical properties. Diamond and graphite are allotropes of carbon.
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