question_answer 1)

  Which of the following pairs is expected to have the same bond order? (a) \[{{O}_{2}},{{N}_{2}}\]                            (b) \[O_{2}^{+},N_{2}^{-}\]                         (c) \[O_{2}^{-},N_{2}^{+}\]                              (d) \[O_{2}^{-},N_{2}^{-}\]

Answer:

  (b)

Species	\[{{N}_{2}}\]	\[{{O}_{2}}\]	\[O_{2}^{+}\]	\[N_{2}^{-}\]	\[O_{2}^{-}\]	\[N_{2}^{+}\]
Bond order	3	2	2.5	2.5	1.5	2.5