In which of the following ionixation processes , the bond order has increased and the magnetic behaviour has changed ?

Options

A. `O_2rarr O_2^(+)`
B. `NO rarr NO^(+)`
C. `N_2 rarrN_2^(+)`
D. `C_2 rarr C_2^(+)`

Answer

B

Explanation

`NO(15e^(-)s)implies KKsigma2s^2, sigma^**2s^2, sigma2p_z^2{:(pi2p_x^2,,),(pi2p_y^2,,):}]{:(pi^**2p_x^1,,),(pi^**2p_y^0,,):}`
It is paramangnetic with bond order `=(10-5)/(2)=2.5`
`NO^(+)` loses the unpaired `e^(-)` and becomes diamagnetic. Its bond order `=(10-4)/(2)=3`
`O_2` (paramagnetic, `bo=2`)`rarrO_2^(+)` (paramagnetic, `bo=2.5`)
`N_2` (diamagnetic, `bo=3`)`rarrN_2^(+)` (paramagnetic, `bo 2.5`)
`C_2` (diamagnetic, `bo=2`)`rarrC_2^(+)` (paramagnetic, `bo 1.5`)