Your ACS exam will likely be ~15-20% OChem 1 and 75-80% OChem 2. Ensure you also watch Chapter 27 (Polymers) to prepare for the few questions on this topic!

Sections:
02:34 Reactions of the Alkene & Alkyne
18:08 Substitution & Elimination of Alkyl Halides
23:45 Reactions of Alcohols, Ethers, Epoxides, & Amines
43:56 The Organometallic Reactions
54:39 The Radical Reactions
1:06:02 The Carboxylic Acid & Its Derivatives
1:33:28 The Reactions of Aldehydes & Ketones
1:55:49 The Reactions of the Alpha Carbon
2:15:12 The Reactions of Benzene
2:47:33 The Reactions of Heterocycles