JEE Main & Advanced Chemistry The s-Block Elements Question Bank Critical Thinking

  • question_answer Nitrogen is liberated by the thermal decomposition of only [IIT 1991]

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

    B) \[Na{{N}_{3}}\]

    C) \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\]

    D) All the three

    Correct Answer: D

    Solution :

    \[N{{H}_{4}}N{{O}_{2}}\,\to \,{{N}_{2}}+2{{H}_{2}}O\] \[2Na{{N}_{3}}\,\to \,2Na+3{{N}_{2}}\] \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\,\to \,{{N}_{2}}+C{{r}_{2}}{{O}_{3}}+4{{H}_{2}}O\]


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