Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Which one of the following should be most stable?

    A) \[H_{2}^{+}\]                                    

    B) \[{{H}^{+}}\]

    C) \[{{H}^{-}}\]                                      

    D) \[H\]

    Correct Answer: C

    Solution :

    \[{{H}^{-}}\] ion is most stable than \[H_{2}^{+},\] \[{{H}^{+}},\]\[H\]. Because s-orbital is fulfilled of \[{{H}^{-}}\] ion. \[{{H}^{-}}=1{{s}^{2}}\] According to Hund's rule, it is more stable configuration.


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