CMC Medical CMC-Medical VELLORE Solved Paper-2009

  • question_answer
    \[N{{H}_{3}}\] gas is passed over heated copper oxide. It oxidises to

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

    B)  \[N{{O}_{2}}\]

    C)  \[NO\]                                

    D)  \[HN{{O}_{2}}\]

    Correct Answer: A

    Solution :

                     On passing ammonia gas over heated copper oxide, it gives nitrogen gas. \[3CuO+\underset{\text{ammonia}}{\mathop{2N{{H}_{3}}(g)}}\,\xrightarrow{{}}3Cu+{{N}_{2}}\uparrow +\,3{{H}_{2}}O\]


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