Final answer:
The dominant attraction between K+ and Cl- ions in KCl is known as ion-ion attraction, which is a strong electrostatic force holding ions together in an ionic bond. B. ion-ion attraction
Step-by-step explanation:
The dominant attraction between K+ ions and Cl- ions in KCl is called ion-ion attraction. This type of attraction is an example of an ionic bond, which involves the electrostatic force that holds ions together in an ionic compound.
The strength of the ionic bond is directly dependent upon the quantity of charges and inversely dependent on the distance between the charged particles. Unlike dipole-dipole attractions, which occur between polar molecules with partial charges, ion-ion attractions occur between fully charged ions, resulting in a much stronger interaction.