Question

Which of the following molecules and ions contain polar bonds? Which of these molecules and ions have dipole moments?

1. \({\rm{Cl}}{{\rm{F}}_{\rm{5}}}\)
2. \({\rm{Cl}}{{\rm{O}}_{\rm{2}}}{\rm{ - }}\)
3. \({\rm{TeC}}{{\rm{l}}_{\rm{4}}}^{{\rm{2 - }}}\)
4. \({\rm{PC}}{{\rm{l}}_{\rm{3}}}\)
5. \({\rm{Se}}{{\rm{F}}_{\rm{4}}}\)
6. \({\rm{P}}{{\rm{H}}_{\rm{2}}}^{\rm{ - }}\)
7. \({\rm{Xe}}{{\rm{F}}_{\rm{2}}}\)

Short answer

The following molecules and ions contain polar bonds:\({\rm{Cl}}{{\rm{F}}_{\rm{5}}}{\rm{,Cl}}{{\rm{O}}_{\rm{2}}}{\rm{ - ,PC}}{{\rm{l}}_{\rm{3}}}{\rm{,Se}}{{\rm{F}}_{\rm{4}}}{\rm{, and P}}{{\rm{H}}_{\rm{2}}}{\rm{.}}\)

Step-by-step solution

Concept Introduction

A polar bond is one of the types of covalent bond in which the electrons forming the bond are distributed unequally.

Molecules and ions that contain polar bonds

Polar bonding can be found in all of these compounds and ions \({\rm{Cl}}{{\rm{F}}_{\rm{5}}}{\rm{,Cl}}{{\rm{O}}_{\rm{2}}}{\rm{ - ,PC}}{{\rm{l}}_{\rm{3}}}{\rm{,Se}}{{\rm{F}}_{\rm{4}}}{\rm{, and P}}{{\rm{H}}_{\rm{2}}}{\rm{ - have dipole moments}}{\rm{.}}\)