question_answer

In which of the following pairs molecules have bond order three and are isoelectronics [MP PET 2003]

A)                 \[C{{N}^{-}}\], CO

B)                 \[N{{O}^{+}},\,\,C{{O}^{+}}\]

C)                 \[C{{N}^{-}}\], \[O_{2}^{+}\]     

D)                 CO, \[O_{2}^{+}\]