What is the number of unpaired electron(s) in the highest occupied molecular orbital of the following species : $N _2: N _2^{+} ; O _2 ; O _2^{+}$?
$0,1,2,1$
$2,1,2,1$
$0,1,0,1$
$2,1,0,1$
According to $MO$ theory which of the lists ranks the nitrogen species in terms of increasing bond order?
Number of paramagnetic oxides among the following given oxides is ..... .
$\mathrm{Li}_{2} \mathrm{O}, \mathrm{CaO}, \mathrm{Na}_{2} \mathrm{O}_{2}, \mathrm{KO}_{2}, \mathrm{MgO}$ and $\mathrm{K}_{2} \mathrm{O}$
The number of species from the following which are paramagnetic and with bond order equal to one is___________
$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$
In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?
The paramagnetic nature of oxygen can be explained by