JEE Main & Advanced JEE Main Paper (Held On 10-Jan-2019 Morning)

  • question_answer
    Two pi and half sigma bonds are present in: [JEE Main Online Paper (Held On 10-Jan-2019 Morning]

    A) \[{{O}^{2}}\]                                     

    B)                  \[{{N}^{+}}_{2}\]   

    C)                  \[{{O}^{+}}_{2}\]                                     

    D)                  \[{{N}_{2}}\]

    Correct Answer: B

    Solution :

    \[{{N}^{+}}_{2}\left( {{13}^{e-}} \right)=\sigma 1{{s}^{2}},\,{{\sigma }^{*}}1{{s}^{2}},\text{ }\sigma 2{{s}^{2}},\text{ }{{o}^{*}}2{{S}^{2}},\,\pi 2p{{x}^{2}}\] \[=\pi 2{{p}_{y}}^{2}\,\sigma 2{{p}^{\text{1}}}_{\text{z}}\] \[{{N}^{+}}_{2}\Rightarrow BO\Rightarrow 2.5\Rightarrow \] \[[\pi -bond=2,\,\,\sigma \,\,bond=\frac{1}{2}]\] Similarly \[{{N}_{2}}\Rightarrow BO\Rightarrow 3\Rightarrow \,[\pi -bond=2,\,\,\sigma \,\,bond=1]\] \[{{O}^{+}}_{2}\Rightarrow BO\Rightarrow 2.5\Rightarrow \,\,[\pi -bond=1.5,\,\,\sigma \,\,bond=1]\]\[{{O}_{2}}\Rightarrow \,BO\Rightarrow 2\Rightarrow \,\,[\pi -bond=1,\,\,\sigma \,\,bond=1]\]


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