In which of the following transformations, the bond order has increased and the magnetic behaviour has changed ?
$C_2^+\to C_2$
$NO^+\to NO$
$O_2\to O_2^+$
$N_2\to N_2^+$
The hybridizations of atomic orbitals of nitrogen in $NO_2^+, NO_3^-$ and $NH_4^+$ respectively are
Compare the relative stability of the following species and indicate their magnetic properties;
$O _{2}, O _{2}^{+}, O _{2}^{-}$ (superoxide), $O _{2}^{2-}$ (peroxide)
Among the following, the paramagnetic compound is
When two atomic orbitals combine they form
${{\rm{H}}{{\rm{e}}_2}}$ molecule is not possible.