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8th Class Science Coal and Petroleum Question Bank Coal and Petroleum

  • question_answer
    What is the underlying principle based on which fractional distillation is carried out?

    A)  Different densities of each fraction

    B)                         Different molecular weights of each fraction

    C)                         Different boiling points of each fraction

    D)                         Different melting points of each fraction

    Correct Answer: C

    Solution :

    Fractional distillation is a method of separation of liquid substances based on their different boiling points.


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