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KVPY Sample Paper KVPY Stream-SX Model Paper-13

  • question_answer
    According to molecular orbital theory, which of the following is true with respect to \[\text{Li}_{2}^{+}\] and \[\text{Li}_{2}^{-}\]?

    A) Both are unstable

    B) \[\text{Li}_{2}^{+}\] is unstable and \[\text{Li}_{2}^{-}\] is stable

    C) \[\text{Li}_{2}^{+}\] is stable and \[\text{Li}_{2}^{-}\] is unstable

    D) Both are stable

    Correct Answer: D

    Solution :

    Both \[\text{L}i\,_{2}^{+}\] and \[\text{L}i\,_{2}^{-}\]has 0.5 bond order and hence both are stable.


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