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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 28

  • question_answer
    Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.

    A) \[NO<O_{2}^{-}<C_{2}^{2-}<He_{2}^{+}\]

    B) \[O_{2}^{-}<NO<C_{2}^{2-}<He_{2}^{+}\]

    C) \[C_{2}^{2-}<He_{2}^{+}<O_{2}^{-}<NO\]

    D) \[He_{2}^{+}<O_{2}^{-}<NO<C_{2}^{2-}\]

    Correct Answer: D

    Solution :

    [d]:
    Diatomic species Bond order
    No 2.5
    \[O_{2}^{-}\] 1.5
    \[C_{2}^{2-}\] 3.0
    \[He_{2}^{+}\] 0.5
    Thus increasing order : \[He_{2}^{+}<O_{2}^{-}<NO<C_{2}^{2-}\]


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