What is the strongest intermolecular force exhibited in each? Covalent molecules, Ionic compounds, polar covalent molecules.

This is my answer:
Covalent: London forces
Ionic: Ion-dipole
Polar Covalent: Dipole- Dipole

Is this correct?

It isnt.

it is right just the ionic part is wrong

Yes, your answer is correct. The strongest intermolecular force exhibited in each type of molecule/compound is as follows:

1. Covalent molecules: The strongest intermolecular force in covalent molecules is London dispersion forces (also referred to as van der Waals forces). These forces arise due to temporary fluctuations in electron distribution, creating temporary dipoles. London dispersion forces increase with the size of the molecule.

2. Ionic compounds: The strongest intermolecular force in ionic compounds is ion-dipole interactions. These occur between ions of opposite charges and polar molecules. The positive ions (cations) are attracted to the negative pole of the polar molecule, and the negative ions (anions) are attracted to the positive pole.

3. Polar covalent molecules: The strongest intermolecular force in polar covalent molecules is dipole-dipole interactions. These forces result from the attraction between the positive end of one polar molecule and the negative end of another polar molecule. The strength of dipole-dipole interactions increases with the magnitude of the dipole moment.

To determine the intermolecular forces in each case, it is important to understand the polarity of the molecules/compounds and their molecular structure. Covalent molecules have nonpolar or polar bonds, while ionic compounds have complete transfer of electrons between atoms, resulting in oppositely charged ions. Polar covalent molecules have a partial separation of charge due to differences in electronegativity between the atoms.