Among the following species, the diamagnetic molecule is
$O_2$
$NO$
$B_2$
$CO$
Which one of the following molecules is paramagnetic?
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 species having no $P\pi - P\pi $ bond but has bond order equal to $O_2$
Which of the following molecular orbital has two nodal planes
Which one of the following oxides is expected exhibit paramagnetic behaviour