MGIMS WARDHA MGIMS WARDHA Solved Paper-2004

  • question_answer
    The bond order of\[O_{2}^{+}\]is the same as in:

    A)  \[N_{2}^{+}\]                                  

    B)  \[C{{N}^{-}}\]

    C)   \[CO\]                                

    D)   \[N{{O}^{+}}\]

    Correct Answer: A

    Solution :

                     \[O_{2}^{+}(15{{e}^{-}})=K:{{K}^{*}}{{(\sigma 2s)}^{2}}{{({{\sigma }^{*}}2s)}^{2}}\] \[{{(\sigma 2{{p}_{x}})}^{2}}{{(\pi 2{{p}_{y}})}^{2}}{{(\pi 2{{p}_{z}})}^{2}}{{({{\pi }^{*}}2{{p}_{z}})}^{0}}\] Hence, bond order\[=\frac{1}{2}(10-5)=2.5\] \[N_{2}^{+}(134{{e}^{-}})=K{{K}^{*}}{{(\sigma 2s)}^{2}}{{({{\sigma }^{*}}2s)}^{2}}{{(\sigma 2{{p}_{x}})}^{2}}\]                                                 \[{{(\pi 2{{p}_{y}})}^{2}}{{(\pi 2{{p}_{z}})}^{1}}\] Hence, bond order\[=\frac{1}{2}(9-4)=2.5\]


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