Assuming that Hund's rule is violated, the bond order and magnetic nature of the diatomic molecule $B_2$ is
$1$ and diamagnetic
$0$ and diamagnetic
$1$ and paramagnetic
$0$ and paramagnetic
According to $MO$ theory the bond orders for $O _2{ }^{2-}$, $CO$ and $NO ^{+}$respectively, are
Which one of the following molecules is paramagnetic?
What is bond order according to Lewis ? Write structure and bond order of ${{\rm{H}}_2}{\rm{,}}{{\rm{O}}_2},{{\rm{N}}_2},{\rm{CO}},{\rm{NO}}$.
Which of the following species is paramagnetic?
Stability of the species $Li_2, Li_2^-$ and $Li_2^+$ increases in the order of :