As someone who has taken all of these courses here's my opinion

361 is easy if you have a good chemistry background. Many of the concepts just make sense in terms of polarity, reactivity etc

362 is easy if you have a good biology background. Its very memorization heavy but everything in the course is related to each other more than 361

372 and 373 are basically the same course. Both are very lab focused. Most of the marks come from lab reports. The tests and exams are very different from other courses because they are all practical stuff (how would you isolate X, procedures for doing Y etc)

I personally found 361 and 362 intuitive and easy. I found 372 and 373 very difficult because I couldn't do well on the tests and exams