What is the difference between dipole-dipole force and ion-dipole force?

[jessiele]

I'm a bit confused about the intermolecular forces of dipole-dipole and ion-dipole force?
CH3Cl : ion-dipole, why is it?( from STAV trial exam 2012)
pleasee help

[oneoneoneone]

Isn't it dipole-dipole forces for chloromethane?

[jessiele]

so does it mean CH3Cl is a polar molecule like CH3OH?
because what I know from searching is dipole-dipole force only present in polar molecules

[Tonychet2]

I'm a bit confused about the intermolecular forces of dipole-dipole and ion-dipole force?
CH3Cl : ion-dipole, why is it?( from STAV trial exam 2012)
pleasee help

it would be ion dipole if it reacted with water
but dipole - dipole between chloro ethane molecules

[jessiele]

ohh I see, it's all clear now, thanks guys