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10th Class Science Metals and Non-metals / धातु और अधातु Question Bank Metals and Non-metals

  • question_answer
    A non-metal X is an important constituent of our food. It forms two oxides Y and Z. Y is toxic and causes suffocation and even death while Z is responsible for global warming. Identify X, Y and Z.

    A)  \[X=C,\,Y=CO,\,Z=C{{O}_{2}}\]

    B)  \[X=S,\,Y=S{{O}_{2}},\,Z=S{{O}_{3}}\]

    C)  \[X=P,\,Y={{P}_{2}}{{O}_{3}},\,Z={{P}_{2}}{{O}_{5}}\]

    D)  \[X=O,\,Y={{O}_{2}},Z={{O}_{3}}\]

    Correct Answer: A

    Solution :

    The non-metal X is carbon which is an important constituent of our food. Carbon forms two oxides Y (CO) and \[z(C{{o}_{2}}).\]CO is toxic and causes suffocation and even death while \[C{{O}_{2}}\]is responsible for global warming.


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