Final answer:
A hydrogen bond is stronger than both dipole-dipole interactions and London dispersion forces, but is weaker than covalent and ionic bonds.
Step-by-step explanation:
The statement that is true regarding a hydrogen bond is that it is generally much stronger than other dipole-dipole attractions and London dispersion forces. A hydrogen bond is an intermolecular attractive force in which a hydrogen atom that is covalently bonded to a small, highly electronegative atom is attracted to a lone pair of electrons on an atom in a neighboring molecule.
These bonds are significant in affecting the properties of water and biological molecules, like DNA and proteins, where they play a crucial role in maintaining structure and function. However, hydrogen bonds are much weaker than covalent bonds and definitely weaker than ionic bonds.