UPSC CDS 2 2023 GK Paper

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Question : 40 of 120

Marks: +1, -0

Which one of the following statements is correct about diamond and graphite?

Diamond and graphite have similar physical and chemical properties.
Diamond is hard but graphite is smooth and slippery.
Diamond and graphite are both non-conductors of electricity.
Both diamond and graphite have similar structures.

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