What kids of intermolecular forces must be overcome as CO2 sublimes? (check all that apply)

1. dispersion forces

2. dipole dipole

3. H-bonds

4. ion dipole

1 answer

The CO2 molecule is a linear molecule; therefore, it has no net dipole moment and is non-polar as a molecule.
There are no H bonds possible so that's out. Dispersion forces for sure. I see no ions so ion dipole is out. It isn't a dipole so that one is out in my opinion. The question sounds as if there is more than one answer but I stick with a as the only one.