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Examples of Dipole dipole interaction
Accepted Answer
Dipole–dipole interactions result from the electrostatic attraction between the positive end of one polar molecule and the negative end of another polar molecule. This type of interaction occurs when polar covalent bonds are formed between different atoms, creating a partial positive charge on one atom and a partial negative charge on the other. Examples of dipole–dipole interactions include the attraction between:
* Water molecules, in which the oxygen atom has a partial negative charge and the hydrogen atoms have partial positive charges.
* Hydrogen chloride molecules, in which the hydrogen atom has a partial positive charge and the chlorine atom has a partial negative charge.
* Ethanol molecules, in which the oxygen atom has a partial negative charge and the hydrogen atoms have partial positive charges.
These interactions are weaker than hydrogen bonds and ionic bonds, but they can still have a significant impact on the physical properties of a substance. For example, dipole–dipole interactions are responsible for the relatively high boiling points of polar molecules, such as water and ethanol.
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