You will normally be paired up with another Chemistry undergraduate in your year for tutorials, and the two of you will be able to discuss with your Tutor any difficulties you are having with the lectures, or with the problem sheets. Special classes are laid on to deal with the Mathematics in the first year and with the material of any Supplementary Subject if you choose to take one in the second year. Because there are Tutors in each of the three main branches of the subject - Organic, Inorganic and Physical. Because it is a large, beautiful College with a good social mix. Quite a few go into research, University teaching, or schoolteaching.
Lots go into accountancy, actuarial work, and computing.
Many go into banking, business, and industry. Some even become lawyers. Prof. Richard Wayne is a physical chemist who works on the chemistry of the atmosphere, and is involved with topics such as the stratospheric ozone layer, photochemical smog, and the behaviour of the natural and polluted atmosphere. There is no need to try to read up on the topics studied at University. But the following books are fun and informative, and should give you a good idea of what University Chemistry is all about.