In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic ?

Options

A. `NO to NO^(+)`
B. `N_(2) to N_(2)^(+)`
C. `O_(2) to O_(2)^(2-)`
D. `O_(2) to O_(2)^(+)`

Answer

A

Explanation

Magnetic nature
`NO to NO^(+) B.O rArr 2.5 to 3 " "` Paramagnetic `to`Diamagnetic
`{:(N_(2)toN_(2)^(+) B.O. rArr 3 to 2.5),(O_(2)to O_(2)^(2-) B.O. rArr 2 to 1):}]`B.O. `darr`
`O_(2) to O_(2)^(+) B.O. rArr 2to 2.5 " "` Paramagnetic `to` Paramagnetic
So, `NO to NO^(+)` is correct answer