BCECE Engineering BCECE Engineering Solved Paper-2005

  • question_answer
    When heated\[N{{H}_{3}}\] is passed over\[CuO\]gas evolved is:

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

    B) \[{{N}_{2}}O\]

    C) \[HN{{O}_{3}}\]               

    D)        \[N{{O}_{2}}\]

    Correct Answer: A

    Solution :

    \[3CaO+2N{{H}_{3}}\xrightarrow{{}}3Ca+{{N}_{2}}+3{{H}_{2}}O\] \[\therefore \]\[{{N}_{2}}\]gas is evolved when \[CaO\]reacts with\[N{{H}_{3}}\]


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