JEE Main & Advanced JEE Main Paper (Held on 09-4-2019 Morning)

  • question_answer Magnisium powder burns in air to give: [JEE Main 9-4-2019 Morning]

    A) \[MgO\] only

    B) \[MgO\]and \[Mg{{(N{{O}_{3}})}_{2}}\]

    C) \[MgO\]and \[M{{g}_{3}}{{N}_{2}}\]

    D) \[Mg{{(N{{O}_{3}})}_{2}}\]and \[M{{g}_{3}}{{N}_{2}}\]

    Correct Answer: C

    Solution :

    \[Mg+\underset{{{O}_{2}}/{{N}_{2}}}{\mathop{air}}\,\xrightarrow[{}]{\Delta }MgO+M{{g}_{3}}{{N}_{2}}\]


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