The pair of species with the same bond order is :

Options

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

Answer

C

Explanation

(c ) Bond order are
`sigma_(2s)^(2)sigma**_(2s)^(2)sigma_(2p_(z))^2pi_(2p_(x))^2pi_(2p_(y))^2pi**_(2p_(x))^1pi**_(2p_(y))^1` and
For `O_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))^1`