The changes in bond length with respect to $N-N$ and $O-O$,when $N_2$ becomes $N_2^{+}$ and $O_2$ becomes $O_2^{+}$ are respectively

Based on the Molecular Orbital Theory,which of the following is the correct electronic configuration of the nitrogen molecular ion $N_2^+$?

What is the bond order of $N_2$?

Which of the following statements is correct for the peroxide ion $(O_2^{2-})$?
$A.$ It has completely filled $\pi^*$ antibonding molecular orbitals.
$B.$ It is diamagnetic.
$C.$ It has a bond order of one.
$D.$ It is isoelectronic with Neon.

The paramagnetic molecule at ground state among the following is

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 $F_{2}$.