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8th Class Science Combustion and Flame Question Bank Combustion and Flame Formative Objective Problems

  • question_answer
    The following table lists some substances as combustible and non-combustible.
    Combustible Non-combustible
    Wood Glass
    Magnesium Charcoal
    Kerosene Stone
    Which of the following substances is listed incorrectly in the table?

    A)  Glass                                   

    B)  Charcoal

    C)  Kerosene                          

    D)  Magnesium

    Correct Answer: B

    Solution :

      Combustion is a chemical process in which a substance reacts with oxygen with the emission of heat. The substances that undergo combustion are called combustible substances and those that do not undergo combustion are called non-combustible substances. Charcoal is a combustible substance. Hence, it is listed incorrectly in the table. The correct answer is B.


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