The answer would be ion-dipole forces and dipole induced dipole interaction.
Intermolecular force : The force of attraction by which two atoms or two molecules connected to create a molecule or matter.
Explanation:
1. The strongest type of intermolecular force in pure solute :
The strongest of the intermolecular forces ion-dipole forces. Hydrogen bonding is a particular term for a specifically strong dipole-dipole interaction in the middle of a hydrogen atom and a very electronegative atom (oxygen, fluorine, or nitrogen).
2. What is the strongest type of intermolecular force in the pure solvent ?
Dipole-induced dipole interaction is the strongest intermolecular force.
To know more intermolecular forces here :
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