Final answer:
CCl4 does not exhibit dipole-dipole interactions because it is nonpolar; its primary intermolecular force is dispersion forces. Water and HCl, being polar, experience significant dipole-dipole interactions.
Step-by-step explanation:
The substance that does not show dipole-dipole interactions between molecules among Water, HCl, and CCl4 is CCl4. Water (H2O) and HCl (hydrochloric acid) are both polar molecules and exhibit strong dipole-dipole interactions due to their polar nature. However, CCl4 (carbon tetrachloride) is a nonpolar molecule because the symmetry of its tetrahedral shape causes the polarities of the C-Cl bonds to cancel out, leaving no net dipole moment in the molecule. Therefore, the primary intermolecular force in CCl4 is dispersion forces, which are much weaker than dipole-dipole interactions.
Dipole-dipole interactions occur when the positive end of a polar molecule is attracted to the negative end of another polar molecule. These are typically stronger than dispersion forces, but since CCl4 has no dipoles, it does not engage in dipole-dipole interactions.