How do you express the bond strength in terms of bond order?

In the process,$O_2^+ \to O_2^{2+} + e^-$,the electron lost is from:

What is the bond order in $N_2^{+}$?

The correct order of bond length is:

For diatomic molecules,the correct statement$(s)$ about the molecular orbitals formed by the overlap of two $2p_z$ orbitals is(are):
$(A)$ $\sigma$ orbital has a total of two nodal planes.
$(B)$ $\sigma^*$ orbital has one node in the $xz$-plane containing the molecular axis.
$(C)$ $\pi$ orbital has one node in the plane which is perpendicular to the molecular axis and goes through the center of the molecule.
$(D)$ $\pi^*$ orbital has one node in the $xy$-plane containing the molecular axis.

$A$ molecule which contains unpaired electrons is