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

Options

A. `N_(2)rarrN_(2)^(+)`
B. `NOrarrNO^(+)`
C. `O_(2)rarrO_(2)^(2-)`
D. `O_(2)rarrO_(2)^(+)`

Answer

B

Explanation

`{:((a)N_(2)rarrN_(2)^(+),B.O:3rarr2.5,,"Dia"rarr."Para"),((b)NOrarrNO^(+),B.O:2.5rarr3,,"Para"rarr."Dia"),((c)O_(2)rarrO_(2)^(2-),B.O:2rarr1,,"Para"rarr."Dia"),((d)O_(2)rarrO_(2)^(+),B.O:2rarr2.5,,"Para"rarr."Para"):}`