Dive into the fascinating world of organic chemistry separations and functional groups! This SC175 tier list ranks essential techniques and compound classes, from the fundamental processes of **การสกัด** (extraction), **การกลั่น** (distillation), and **ตกผลึก** (crystallization) to crucial hydrocarbon structures. Explore the distinctions between **ไฮโดรคาร์บอน**, **แอลกอฮอล์และฟีนอล**, and the reactive **อัลดีไฮด์และคีโตน**. Discover where powerful analytical tools like **โครมาโทกราฟี** (chromatography) fit in. Understand the hierarchy and importance of these building blocks and methods that define organic chemistry practice.