Q.

Pair of species among the following having same bond order as well as paramagnetic character will be-                 [2026]

1 O2+,N22-  
2 O2-,N2-  
3 O2+,N2-  
4 O2-,N2+  

Ans.

(3)

Species Bond order Magnetic Nature
O2+ 2.5 Paramagnetic
O2- 1.5 Paramagnetic
O2+ 2.5 Paramagnetic
N2- 2.5 Paramagnetic
N22- 2 Paramagnetic