According to $MO$ theory the bond orders for $O _2{ }^{2-}$, $CO$ and $NO ^{+}$respectively, are
$1,3$ and $3$
$1, 3$ and $2$
$1,2$ and $3$
$2,3$ and $3$
When $\psi_{\mathrm{A}}$ and $\Psi_{\mathrm{B}}$ are the wave functions of atomic orbitals, then $\sigma^*$ is represented by :
The correct order of the $O-O$ bond length in $O_2, H_2O_2$ and $O_3$ is
Two pi and half sigma bonds are present in
Which of the following molecular orbitals has maximum number of nodal planes ?
In which of the following transformations, the bond order has increased and the magnetic behaviour has changed?