Question

What is the difference between dipole-dipole interactions and dipole-induced dipole interactions?

1.) dipole-dipole interactions involve two non polar molecules. Dipole induced dipole interactions involve one polar molecule with a permanent dipole and one non-polar molecule.

2.) Dipole-dipole interactions involve two non-polar molecules. Dipole induced dipole interactions involve two polar molecules with permanent dipoles.

3.) dipole-dipole interactions involve two polar molecules with induced dipoles. Dipole induced dipole interactions involve two non-polar molecules.

4.) Dipole-dipole interactions involve two polar molecules with permanent dipoles. Dipole-induced interactions involve one polar and one non-polar molecule.

I thought it was the first option but it wasn't so now I believe it's number two.

Answer 1

1 and 2 can't be right because to have dipole-dipole you MUST HAVE two dipole attracting each other.

Answer 2

oh ok thank you. so would it be 4 because I think I remember reading that dipole induced interactions involve one polar and one non polar molecule

Answer 3

yes, very good.