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    Question

    Which of the following pairing denoting the mixture of

    gases in air is NOT correct?
    A Oxygen – 20.9% Correct Answer Incorrect Answer
    B Nitrogen 78.03% Correct Answer Incorrect Answer
    C Agron – 0.3% Correct Answer Incorrect Answer
    D Carbon dioxide – 0.033% Correct Answer Incorrect Answer

    Solution

    Air is a  homogeneous mixture  of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Air is a mixture of different gasses like  N2 (78%), O2(21%), argon (1%), carbon CO2 (0.03%), and water vapor . 

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