Question

What are weak chemical bonds that form between polar molecules called?

Answer 1

dipole-dipole interaction

Explanation:

polar molecules are characterized by their net dipole moment resulting from the pull of electron density by an electronegative element from a less electronegative one.

For example, in a carbonyl group `C=O` of acetone, the oxygen pulls the electron density toward it resulting in a partial negative charge (`delta-`) on oxygen and a partial positive charge (`delta+`) on carbon:

the attraction between the `delta-` on oxygen from one molecule and the `delta+` on carbon from another molecule will result in a dipole-dipole interaction between the two molecules:

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