RAJASTHAN ­ PET Rajasthan PET Solved Paper-2004

  • question_answer
    Which of the following presents in sapphine?

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

    B)  \[A{{g}_{2}}O\]

    C)  \[C{{u}_{2}}O\]            

    D)  \[MnO\]

    Correct Answer: A

    Solution :

     \[A{{l}_{2}}{{O}_{3}}\]presents in sapphire.


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