Which of the following molecules or ions contain polar bonds? (a) \({{\rm{S}}_{\rm{8}}}\) (b) \({{\rm{S}}_{\rm{8}}}\) (c) \({{\rm{O}}_{\rm{2}}}^{{\rm{2 - }}}\) (d) \({\rm{N}}{{\rm{O}}_{\rm{3}}}^{\rm{ - }}\) (e) \({\rm{C}}{{\rm{O}}_{\rm{2}}}\) (f) \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) (g) \({\rm{B}}{{\rm{H}}_{\rm{4}}}^{\rm{ - }}\) .

A chemical bond is an attraction between atoms, ions, or molecules that allows chemical compounds to form.

The concept applied in this topic is that compounds having a single kind of element will have non-polar bonds since the electronegativity difference will be zero.

As a result of the foregoing reasoning,\({{\rm{O}}_{\rm{3}}}{\rm{ , }}{{\rm{S}}_{\rm{8}}}\), and\({{\rm{O}}_{\rm{2}}}^{{\rm{2 - }}}\)have nonpolar bonds, whereas\({\rm{N}}{{\rm{O}}_{\rm{3}}}^{\rm{ - }}{\rm{ , C}}{{\rm{O}}_{\rm{2}}}{\rm{ , }}{{\rm{H}}_{\rm{2}}}{\rm{S}}\), and\({\rm{B}}{{\rm{H}}_{\rm{4}}}^{\rm{ - }}\)have polar bonds.

Therefore, the values having non-polar bonds are:\({{\rm{O}}_{\rm{3}}}{\rm{ , }}{{\rm{S}}_{\rm{8}}}\)and\({{\rm{O}}_{\rm{2}}}^{{\rm{2 - }}}\).

The values having polar bonds are: \({\rm{N}}{{\rm{O}}_{\rm{3}}}^{\rm{ - }}{\rm{ , C}}{{\rm{O}}_{\rm{2}}}{\rm{ , }}{{\rm{H}}_{\rm{2}}}{\rm{S}}\) and \({\rm{B}}{{\rm{H}}_{\rm{4}}}^{\rm{ - }}\) .