Write resonance forms describing the distribution of electrons in each molecule or ion.

a) selenium dioxide, \({\rm{OSeO}}\)

(b) nitrate ion, \({\rm{NO}}_{\rm{3}}^{\rm{ - }}\)

(c) nitric acid, \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\) (\({\rm{N}}\) is bonded to an \({\rm{OH}}\) group and two \({\rm{O}}\) atoms)

(d) benzene, \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{\rm{6}}}\):

(e) the formate ion:

Resonance is a term used to describe delocalized electrons within molecules or ions where the bonding can`t be depicted using a single Lewis formula. Several resonance structures show a molecule or ion with delocalized electrons.

(a)

Below are the resonance forms of \({\rm{SeO}}_{\rm{2}}^{\rm{ - }}\)-

Therefore, the resonance forms of\({\rm{SeO}}_{\rm{2}}^{\rm{ - }}\) are obtained.

(b)

Below are the resonance forms of \({\rm{NO}}_{\rm{3}}^{\rm{ - }}\) –

Therefore, the resonance forms of \({\rm{NO}}_{\rm{3}}^{\rm{ - }}\) are obtained.

(c)

Below are the resonance forms of \({\rm{HNO}}_{\rm{3}}^{\rm{ - }}\) –

Therefore, the resonance forms of \({\rm{HNO}}_{\rm{3}}^{\rm{ - }}\)are obtained.

(d)

Below are the resonance forms of \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{\rm{6}}}\) –

Therefore, the resonance forms of \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{\rm{6}}}\) are obtained.

(e)

Below are the resonance forms of formate ion –

Therefore, the resonance forms of formate ion are obtained.