JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Nitrogen Family

  • question_answer
    In the catalytic oxidation of ammonia an oxide is formed which is used in the preparation of \[HN{{O}_{3}}\]. This oxide is [CPMT 1984; KCET 1990; AIIMS 1996]

    A) \[{{N}_{2}}{{O}_{5}}\]

    B) \[{{N}_{2}}{{O}_{4}}\]

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

    D) \[NO\]

    Correct Answer: D

    Solution :

    \[4N{{H}_{3}}+5{{O}_{2}}\,\underset{1100K}{\mathop{\xrightarrow{Pt}}}\,\,4NO+6{{H}_{2}}O\] NO is used in the preparation of \[HN{{O}_{3}}\] \[2NO+{{O}_{2}}\,\to \,2N{{O}_{2}}\] ; \[4N{{O}_{2}}+2{{H}_{2}}O+{{O}_{2}}\,\to \,4HN{{O}_{3}}\]


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