PashaJ is right when it comes to PChem being harder. You're gonna have to do some pretty difficult calculations, maybe some quantum mechanics too. Well, at least where I did my undergrad we were expected to solve wave functions.
BTW I didn't do a chem major, but did a bio one. Just took Physical Chem because I thought it would be interesting. PC didn't end up to be one of my highest marks. Just a thought.
AE