Final answer:
The intermolecular force that acts between a chloroform molecule and a fluoride anion is ion-dipole interaction, due to the attraction between the permanent dipole of chloroform and the full negative charge of the fluoride anion.option D) Ion-dipole interactions
Step-by-step explanation:
The student has asked which kind of intermolecular forces act between a chloroform (CHCl3) molecule and a fluoride anion.
The chloroform molecule has a significant dipole moment due to the difference in electronegativity between the hydrogen and chlorine atoms, which gives chloroform a partially positive and partially negative end. The fluoride anion carries a full negative charge. When these two interact, the partially positively charged ends of chloroform will be attracted to the negatively charged fluoride ion. This electrostatic attraction between a permanent dipole (chloroform) and a full ion (fluoride anion) is known as an ion-dipole interaction.