RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    Which gas is evolved by the treatment of magnesium with very dilute solution of\[HN{{O}_{3}}?\]

    A) \[{{N}_{2}}\]                                     

    B)        \[N{{O}_{2}}\]

    C)        \[{{H}_{2}}\]                                      

    D)        \[{{H}_{2}}O\]

    Correct Answer: C

    Solution :

    Magnesium and dilute \[HN{{O}_{3}}\] reacts to produce\[{{H}_{2}}\]gas.                 \[Mg+\underset{\begin{smallmatrix}  Dilute \\  nitric\,\,acid \end{smallmatrix}}{\mathop{2HN{{O}_{3}}}}\,\to Mg{{(N{{O}_{3}})}_{2}}+\underset{Hydrogen}{\mathop{{{H}_{2}}\uparrow }}\,\]


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