Q97E - Chemistry (OpenStax)

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. \({\rm{Xe}}{{\rm{F}}_{\rm{2}}}\)

Step-by-Step Solution

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 1: Concept Introduction

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

Step 2: Molecules and ions that contain polar bonds

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