The pair of species with the same bond order is-

Options

A. `O_(2)^(2-),B_(2)`
B. `O_(2)^(+),NO^(+)`
C. `NO,CO`
D. `N_(2),O_(2)`

Answer

A

Explanation

`O_(2)^(2-): K K (sigma_(2s))^(2)(sigma_(2s)^(**))^(2)(sigma_(2p_(z)))^(2)(pi_(2p_(x)))^(2)(pi_(2p_(y)))^(2)(pi_(2p_(x))^(**))^(2)(pi_(2p_(y))^(**))^(2)`
`B_(2): K K (sigma_(2s))^(2)(sigma_(2s)^(**))^(2)(pi_(2p_(x)))^(1)(pi_(2p_(y)))^(1)`

[NOTE, B.O. of `O_(2)^(+)=2.5,NO^(+)=3,NO=2.5,CO=3,N_(2)=3 and O_(2)=2`].