Which of the following species is paramagnetic?
$NO^-$
$O_2^{2-}$
$CN^-$
$CO$
If ${N_x}$ is the number of bonding orbitals of an atom and ${N_y}$ is the number of antibonding orbitals, then the molecule/atom will be stable if
The bond order is maximum in
Consider the species $CH _{4}, NH _{4}^{+}$and $BH _{4}^{-}$. Choose the correct option with respect to the there species .... .
Which of the following diatomic molecular species has only $\pi$ bonds according to Molecular Orbital Theory?
In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramagnetic to diamagnetic.