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NEET Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Mock Test - The p-Block Elements (Groups 15, 16, 17 and 18)

  • question_answer
    \[N{{H}_{4}}N{{O}_{3}}\xrightarrow{\Delta }A+{{H}_{2}}O,\] \[N{{H}_{3}}+{{O}_{2}}\xrightarrow{Catalyst}B+{{H}_{2}}O\] \[Pb{{(N{{O}_{3}})}_{2}}\xrightarrow{\Delta }C+PbO+{{O}_{2}}\] Among A, B, and C paramagnetic substance(s) is/are

    A) B and C

    B) Only B

    C) A and C

    D) Only A

    Correct Answer: A

    Solution :

    [a] \[N{{H}_{4}}N{{O}_{3}}\to 2{{H}_{2}}O+{{N}_{2}}O(A)\] \[4N{{H}_{3}}+5{{O}_{2}}\to 6{{H}_{2}}O+4NO(B)\] \[2Pb{{(N{{O}_{3}})}_{2}}\xrightarrow{\Delta }2PbO+{{O}_{2}}+4N{{O}_{2}}(C)\] Both nitric oxide (NO) and nitrogen dioxide \[(N{{O}_{2}})\]are paramagnetic in nature due to the presence of odd number of electron (S) in outer shell.


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