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8th Class Science Materials : Metals and Non-metals Question Bank Materials : Metals and Non-metals

  • question_answer
    Arrange the given metals in the descending order of their reactivity.

    A)  Aluminium, copper, potassium

    B)                         Sodium, iron, copper

    C)                         Silver, zinc, calcium

    D)                         Magnesium, copper, sodium

    Correct Answer: B

    Solution :

    The descending order of reactivity of metals is as follows: \[Na>Ca>Mg>Al>Zn>Fe>Sn>Pb[H]\]\[Cu>Hg>Ag>Au>Pt\] By using this, we can say that in the given options, only Na > Fe > Cu is the correct order.


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