Question

    Which of the following is an allotrope of carbon with a

    structure composed entirely of carbon atoms?
    A Teflon Correct Answer Incorrect Answer
    B Fullerene Correct Answer Incorrect Answer
    C Keratin Correct Answer Incorrect Answer
    D Dry Ice Correct Answer Incorrect Answer

    Solution

    Fullerene (C60) represents a carbon allotrope characterized by a structure composed exclusively of carbon atoms arranged in a spheroidal hollow cage formation. By contrast, dry ice is solid carbon dioxide, Teflon is a fluorine-containing polymer, and keratin is a naturally occurring protein produced by the body.

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