Which one does not exhibit paramagnetism
$Cl{O_2}$
$ClO_2^ - $
$N{O_2}$
$NO$
During the conversion of peroxide ion to superoxide ion electron is removed from
The lowest $O - O$ bond length in the following molecule is
Number of lone pair (s) of electrons on central atom and the shape of $BrF _{3}$ molecule respectively, are ..... .
In which of the following transformations, the bond order has increased and the magnetic behaviour has changed?
Give electron configuration, bond order and magnetic property, energy diagram in $\mathrm{MO}$ for Helium $\left( {{\rm{H}}{{\rm{e}}_2}} \right)$ molecule.