Which of the following species in pairs have same shape and same bond order? `N_(3)^(-) , NO_(2)^(-) , CO_(2) ,and O_3`

Explanation

Isoelectronic species possess same shape and same bond order.
`CO_2 ` and `N_(3)^(-)` are isoelectronic (22 electrons).
Similarly `NO_(2)^(-)` and `O_3` are isoelectronic (24 electrons).
Thus `CO_2` and `N_(3)^(-)` have same shape and bond order. Similarly `NO_(2)^(-)` and `O_3` have same shape and bond order.