The bond order and the magnetic characteristics of $CN^{-}$ are

The number of antibonding electron pairs in $O_2^{2-}$ molecular ion on the basis of molecular orbital theory is

If $x-axis$ is the molecular axis and $p_z$ orbitals participate in bonding,then which one of the following will be the nodal plane present within the $\pi-$ bond of the $O_2$ molecule?

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 of $CO$ molecule is

Correct order of $C-O$ bond length is: