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JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Sample Paper Topic Test - Chemical Bonding

  • question_answer
    Arrange the following in decreasing order of their bond length, \[{{O}_{2}},{{O}_{2}}^{+},{{O}_{2}}^{-}\] and \[O_{2}^{2-}\]

    A) \[O_{2}^{2-}<O_{2}^{-}<{{O}_{2}}+O_{2}^{+}\]

    B) \[{{O}_{2}}<O_{2}^{2-}<O_{2}^{-}<O_{2}^{+}\]

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

    D) \[O_{2}^{+}<{{O}_{2}}<O_{2}^{-}<O_{2}^{2-}\]

    Correct Answer: D

    Solution :

    [d] Bond order for \[{{O}_{2}}=2;O_{2}^{+}=2.5\]
    \[O_{2}^{-}=1.5,\,\,O_{2}^{2-}=1\]
    correct order is \[O_{2}^{+}<{{O}_{2}}<O_{2}^{-}<O_{2}^{2-}\]


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