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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    The metal which does not form ammonium nitrate by reaction with dilute nitric acid is :

    A)  \[Al\]                                   

    B)  Fe

    C)  Pb                                         

    D)  Mg

    Correct Answer: C

    Solution :

    AI, Fe, Mg all reduce dilute \[HN{{O}_{3}}\] into\[N{{H}_{4}}N{{O}_{3}}\] while Pb gives \[N{{O}_{2}}\] with dilute nitric acid. \[3Pb+\underset{dilute}{\mathop{8NH{{O}_{3}}\to }}\,3Pb\,{{(N{{O}_{3}})}_{2}}+2NO+4{{H}_{2}}O\]


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