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Electronegativity is not an interaction between molecules. Electronegativity is a relative measure of an atom's tendency to pull electrons to itself. On the other hand dipole-dipole is an interaction that is characterized by the partial charge of one atom being attracted to the opposite partial charge of another atom. Example: the negative partial charge of the F in an HF molecule is attracted to the positive partial charge of the H in an HF molecule.
As the response before me says, electronegativity and dipole-dipole attraction are not exactly something similar. Since electronegativity is a measurement to see how much each element will likely attract the electrons within the bond to form an octet valence shell and dipole- dipole attraction is a type of attraction that forms from electronegativity (where more electrons are pulled in within the bond due to difference in electronegativity), they are not something that you can compare but rather, they are related to each other because one causes the other to happen.
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