Which of the following molecular species has unpaired electrons?

Among the following, the molecule with the highest dipole moment is

The type of hybrid orbitals used by the chlorine atom in $Cl{O}_2^{-}ClO\_2^-$is

The species having bond order different from that in CO is

The correct order of hybridisation of the central atom in the following species $N{H}_3,[PtC{l}_4{]}^{2-},PC{l}_{5}NH\_3,[PtCl\_4]^\{2-\},PCl\_5$ and $BC{l}_{3}BCl\_3$ is

The hybridisation of sulphur in sulphur dioxide is

Of the following compounds, which will have a zero dipole moment?

The species in which the central atom uses $s{p}^{2}sp^2$–hybrid orbitals in its bonding is

Which one of the following compounds has $s{p}^{2}sp^2$ – hybridisation?

The geometry and the type of hybrid orbital present about the central atom in $B{F}_{3}BF\_3$ is