Identify the bond order of $NO^{+}$ ion.

What is the number of electrons present in antibonding orbitals of $N_2$ molecule according to molecular orbital theory?

Which of the following statements is not correct?
$I$) Bond length order: $H_2^- = H_2^+ > H_2$
$II$) $O_2^+, NO, N_2^-$ have the same bond order of $2.5$
$III$) Bond order can assume any value including zero up to four
$IV$) $NO_3^-$ and $BO_3^{3-}$ have the same bond order for the $X-O$ bond (where $X$ is the central atom)

$A$ homonuclear diatomic gas molecule shows $2$-electron magnetic moment. The one-electron and two-electron reduced species obtained from the above gas molecule can act as both oxidizing and reducing agents. When the gas molecule is one-electron oxidized, the bond length decreases compared to the neutral molecule. The gas molecule is

Which of the following diatomic molecular species has only $\pi$ bonds according to Molecular Orbital Theory?

The $\pi$ bond between $Cl$ and $O$ in $ClO_4^-$ is formed by the overlapping of . . . . . . orbitals.