NEET Sample Paper NEET Sample Test Paper-53

  • question_answer
    Which of the following pair consists of only paramagnetic species?

    A) \[[O_{2}^{+},\,\,O_{2}^{-2}]\]                      

    B) \[[O_{2}^{{}},\,\,NO]\]

    C) \[[NO,\,\,N{{O}^{+}}]\]                      

    D) \[[CO,\,\,NO]\]

    Correct Answer: B

    Solution :

    \[{{O}_{2}}=\sigma 1{{s}^{2}},\sigma *1{{s}^{2}},\text{ }\sigma 2{{s}^{2}},\text{ }\sigma *2{{s}^{2}},\sigma 2p_{z}^{2},\,\,\pi 2p_{x}^{2}\] \[=\,\,\pi 2p_{y}^{2}\,\,\pi *2p_{^{x}}^{2},\,\,\pi *2p_{y}^{2}\] \[NO=\sigma 1{{s}^{2}},\,\,\sigma *1{{s}^{2}},\,\,\sigma 2{{s}^{2}}\,\pi *2{{s}^{2}},\,\,\sigma 2p_{z}^{2}\,\pi 2p_{x}^{2}\] \[=\,\,\pi 2p_{y}^{2}\,\,\,\pi *2p{{x}^{1}}\]


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