JEE Main & Advanced JEE Main Paper (Held on 09-4-2019 Morning)

  • question_answer Among the following, the molecule expected to be stabilized by anion formation is : [JEE Main 9-4-2019 Morning] \[{{C}_{2}},{{O}_{2}},NO,{{F}_{2}}\]

    A) \[NO\]                         

    B) \[{{C}_{2}}\]

    C) \[{{F}_{2}}\]                        

    D) \[{{O}_{2}}\]

    Correct Answer: B

    Solution :

    In case of only \[{{C}_{2}},\]incoming electron will enter in the bonding molecular orbital which increases the bond order and stability too. Whereas rest of all takes electron in their antibonding molecular orbital which decreases bond order and stability.


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