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

  • question_answer
    \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\] on heating liberates a gas. The same gas will be obtained by [IIT JEE (Screening) 2004; BVP 2004]

    A) Heating \[N{{H}_{4}}N{{O}_{2}}\]

    B) Heating \[N{{H}_{4}}N{{O}_{3}}\]

    C) Treating \[{{H}_{2}}{{O}_{2}}\] with \[NaN{{O}_{2}}\]

    D) Treating \[M{{g}_{3}}{{N}_{2}}\] with \[{{H}_{2}}O\]

    Correct Answer: A

    Solution :

    \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\xrightarrow{\Delta }{{N}_{2}}\uparrow +C{{r}_{2}}{{O}_{3}}+4{{H}_{2}}O\] \[N{{H}_{4}}N{{O}_{2}}\xrightarrow{\Delta }{{N}_{2}}\uparrow +2{{H}_{2}}O\]


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