Which out of CH3F and CH3Cl has a higher dipole moment and why?
The dipole moment of CH3Cl is greater than that of CH3F. The C-F bond length in CH3F is smaller than the C-Cl bond length in CH3Cl. The charge separation in the C-F bond is more than in the Cl-C bond- fluoride being more electronegative than chlorine. The bond length has a greater effect than the charge separation. Hence the dipole moment of CH3C1 is greater than that of CH3F.
