identify the intermolecular force\nstrongest imf present in\nlondon dispersion forces\ndipole - dipole\nlon…

Brief Explanations:

1. First, analyze the structure of $PCl_3$. It has a trigonal - pyramidal shape due to the presence of a lone pair on the phosphorus atom.
2. The electronegativity of $Cl$ is greater than that of $P$, creating polar $P - Cl$ bonds.
3. Since the molecule is polar, the strongest intermolecular force is dipole - dipole force. London dispersion forces are present in all molecules but are weaker than dipole - dipole forces in polar molecules. There are no ions for ion - dipole interaction and no $H$ bonded to $N$, $O$, or $F$ for hydrogen bonding.

Answer:

dipole - dipole