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    Question

    Which one of the following gases is supporter of

    combustion?
    A Hydrogen Correct Answer Incorrect Answer
    B Nitrogen Correct Answer Incorrect Answer
    C Carbon dioxide Correct Answer Incorrect Answer
    D Oxygen Correct Answer Incorrect Answer

    Solution

    Oxygen is supporter of combustion. Though it is not combustible. Combustion is an oxidation process and this cannot occur without the presence of oxygen. 

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