iTutor Chemistry Updates

Just checking a question here with you guys It says - Predict the inter-molecular bonding the following substances will have. Cl2 HF DNA NBr3 Now I'm looking at this first one Cl2 See I was thinking that would have some type of intramolecular bond, but maybe not. There's hints from some searches that a London force may be involved. So is that right? Is the question correct?