GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
London dispersion forces TRUE or FALSE:All substances experience intermolecular attractions.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -All molecules, whether polar or nonpolar, are attracted to one another by London dispersion forces in addition to any other attractive forces that may be present. In general, however, dipole–dipole interactions in small polar molecules are significantly stronger than London dispersion forces, so the former predominate.

Detailed explanation-2: -There are three types of intermolecular forces: London dispersion forces (LDF), dipole-dipole interactions, and hydrogen bonding. Molecules can have any mix of these three kinds of intermolecular forces, but all substances at least have LDF.

Detailed explanation-3: -Non-polar molecules only have London dispersion forces.

Detailed explanation-4: -London’s dispersion forces occur between all molecules. These very weak attractions occur because of the random motions of electrons on atoms within molecules.

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