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NTSE Sample Paper NTSE SAT Practice Test-17

  • question_answer
    A thin layer is formed on the surface of Aluminium, when it is exposed to air is ______ colour.

    A) Green               

    B)        Blue

    C) Yellow                          

    D) White

    Correct Answer: D

    Solution :

    [d] \[A{{1}_{2}}{{O}_{3}}\] is white


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