Problems and exercisesBond Properties
1. Strength and length
Order the C–F, C–Cl, C–Br and C–I bonds by strength and relate it to their length.
2. Dipole moments
Fluorine is much more electronegative than chlorine, yet the dipole moment of CH3F (1.81 D) is almost the same as that of CH3Cl (1.86 D). Why?
3. The electrophilic centre
In CH3CH2Br, which atom is the electrophilic centre? Which part of the nucleophile attacks it?
4. Which reacts faster?
Which will react faster with a nucleophile, CH3F or CH3I?