JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer Although \[Al\] has a high oxidation potential it resists corrosion because of the formation of a tough, protective coat of

    A)  \[Al{{(N{{O}_{3}})}_{2}}\]                

    B)  \[AIN\]

    C)  \[A{{l}_{2}}{{O}_{3}}\]                     

    D)  \[A{{l}_{2}}{{(C{{O}_{3}})}_{2}}\]

    Correct Answer: C

    Solution :

     Because the layer of \[A{{l}_{2}}{{O}_{3}}\] (oxide) is inert, insoluble and impervious.


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