Which statement about London dispersion forces is TRUE? а
London dispersion forces are the primary force
holding water molecules together.
b London dispersion forces are the strongest
intermolecular forces.
C London Dispersion forces are temporary in nature.
d London dispersion forces are permanent dipoles
between polar molecules.

Option (C) is the correct answer.

Explanation:

When electrons between two combining adjacent atoms attain positions which leads to the formation of temporary charges over the atoms then there exists a temporary adjacent force called London dispersion force.

This force is also known as induced dipole-induced dipole attraction.

When the temperature is lowered to a certain point then London forces causes the non-polar substances to condense to liquid and then they freeze into solids.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.