a hydrogen bond
The hydrogen bond is not strong.
ionic bond
When the range of electronegativity between the atoms are really high. For example, hydrogen has 2.20 elctronegativity and fluorine has 3.98 and the range between them is 1.78. Compared to like nitrogen (3.04) and oxygen (3.44), whose range is 0.4, the hydrogen and fluorine will have a strong dipole-dipole force.
A molecule with a polar covalent bond, such as hydrogen fluoride (HF) or hydrogen chloride (HCl), will have a very strong dipole-dipole force due to the difference in electronegativity between the bonded atoms. This creates a significant imbalance in charge distribution within the molecule, resulting in a strong attraction between the positive and negative ends of neighboring molecules.
A Hydrogen Bond. -Apex
A molecule can have a very strong molecular dipole if it has highly polarized bonds, such as between atoms with large differences in electronegativity. Additionally, having a symmetrical geometry that enhances the overall dipole moment can also contribute to a strong molecular dipole.
This is an intermolecular force.
Intermoleculer attraction ;)
The compound where dipole-dipole attractions are the most important intermolecular force is CH3Cl (methyl chloride). This is because CH3Cl has a permanent dipole moment due to the difference in electronegativity between carbon and chlorine atoms, leading to strong dipole-dipole interactions.
Intermolecular attraction
Dipole-dipole interactions are of electrostatic nature.
dipole-dipole force