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Define hydrogen bond. Is it weaker or stronger than the van der Waals’ forces?

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Hydrogen bond can be defined as the attractive force which binds hydrogen atom of one molecule with the electronegative atom (F, O or N) of another molecule. Hydrogen bond is stronger than van der Waals’forces because it is a strong dipole dipole interaction. The van der Waals’ forces, on the other hand, are weak dispersion forces.

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