Answer: The categories of intermolecular forces in the molecules above are dispersion forces, dipole forces, hydrogen bonding.
Step-by-step explanation:
Here are the different kinds of intermolecular forces present in the above;
Ethane - C2H6 has London dispersion forces—it’s a nonpolar covalent compound— and no other intermolecular attractions.
Dimethyl ether - CH₃OCH₃ has London dispersion force, dipole-dipole attraction, and hydrogen bonding
Ethanot- C2H5OH has has London dispersion force, dipole-dipole attraction, and hydrogen bonding