I`m reading chemistry at Exeter. That is my first year now. College is absolutely lovely and what`s even more important (lack of time for getting into places): it is very central.
Course- loads of work but if you enjoy chemistry you should find it rather demaging then hard.
Interview- I failed two interviews at St Annes but the one at Exeter was quite good. They do not really expect you to know everything, you would rather get the problem and they will help you to figure it out. For example: how many molecules of water are in the glass on the table? I also got something about ethane conformations and sodium chloride structure.
If you have any more questions just write here I will try to answer.