Me= Pharmacy Graduate. Chem, physics, and math got rid of those in pre-pharm that would not succeed in pharmacy school. It was necessary and it worked. Those that made it into pharmacy school had a very high rate of graduation. The less skilled or less motivated were gone.
Same for the lab folk. Quantitative Analysis was a course I worked a lot harder to finish than Organic.
Did you have that huge Morrison and Boyd book for Organic?