Quiz exercises file has been publised, practise and solve those quizes, prepare for your mid-test (worth 40%). Quiz I, will be conducted on Wednesday (30 minutes test) before last of my lecture. For Quiz I on next wednesday, please study Spectrophotometry and GC-MS. Mid-test will cover the whole materials. DR. Joni will deliver his last lecture on Monday morning. I will come on next Wednesday for my last lecture and give you quiz I.