In dinitrogen tetroxide,$N_2O_4$:

Answer the following questions:
$(i)$ Give the molecular orbitals and their types formed by $LCAO$ from $2s, 2p_{x}, 2p_{y}$ and $2p_{z}$ atomic orbitals.
$(ii)$ Provide the energy order of molecular orbitals for $Li_{2}, Be_{2}, C_{2}, N_{2}, O_{2}$ and $F_{2}$.

Which of the following species has the highest bond energy?

Which of the following orbitals cannot form a $\pi$-bond as well as a $\delta$-bond?

Bond order is an inverse measure of

Using molecular orbital theory,compare the bond energy and magnetic character of $O_2^{+}$ and $O_2^{2-}$ species.