Question

Which of the following compounds has the largest dipole moment?

(i) CH₃OH

(ii) CH₄

(iii) CF₄

(iv) CO₂

(v) CH₃F

Answer 1

CH₄ and CF₄ have tetrahedral structure and are symmetrical, hence their dipole moment is zero, CO₂ is linear and hence its dipole moment is also zero of the remaining CH₃OH and CH₃F, since F is more electronegative than O, CH₃F will have high dipole moment.