During change of $O_2$ to $O_2^-$ ion, the electron adds on which one of the following orbitals
${\sigma ^ * }$ orbital
${\sigma}$ orbital
${\pi ^ * }$ orbital
${\pi}$ orbital
Paramagnetism is exhibited by molecules
Which of the following species contain only $\pi \,-\,$ bond but exhibit paramagnetic nature ?
Which of the following statement is not correct ?
Select incorrect statement
Explain in Short : $\mathrm{MO}$ occupancy and molecular properties for ${{\rm{B}}_2}{\rm{,}}{{\rm{C}}_2}{\rm{, }}{{\rm{N}}_2},{{\rm{O}}_2}{\rm{,}}{{\rm{F}}_2},{\rm{N}}{{\rm{e}}_2}$.