Intermolecular Forces

AP Chemistry· difficulty 2/5

Which is the WEAKEST intermolecular force?

  • A

    London dispersion (induced dipole-induced dipole)

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  • B

    Dipole-dipole

  • C

    Hydrogen bonding

  • D

    Ion-dipole

Explanation

LDF arises from temporary fluctuations in electron distribution. Present in all molecules but typically weakest. (Strength ranking: ion-dipole > H-bond > dipole-dipole > LDF.)

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