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    Question

    What is the purest form of

    coal?
    A Anthracite Correct Answer Incorrect Answer
    B Pete Correct Answer Incorrect Answer
    C Lignite Correct Answer Incorrect Answer
    D Bitumins Correct Answer Incorrect Answer

    Solution

    The purest form of coal is anthracite.  Anthracite has the highest carbon content, the fewest impurities, and the highest energy density among all types of coal. It is characterized by its hard, glossy appearance and is used primarily for residential and commercial heating due to its high heat output and relatively clean-burning properties.

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