JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Molecular orbital theory

  • question_answer
    In which of the following pairs the two molecules have identical bond order                                        [MP PMT 2000]

    A)                 \[{{N}_{2}},O_{2}^{2+}\]             

    B)                 \[{{N}_{2}}\], \[O_{2}^{-}\]

    C)                 \[N_{2}^{-}\], \[{{O}_{2}}\]  

    D)                 \[O_{2}^{+}\], \[{{N}_{2}}\]

    Correct Answer: A

    Solution :

               B.O.\[=\frac{1}{2}[\,{{N}_{b}}-{{N}_{a}}]\]                 \[{{N}_{2}}=\frac{1}{2}[10-4]=\frac{6}{2}=3\];   \[O_{2}^{2+}=\frac{1}{2}[10-4]=\frac{6}{2}=3.\]


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