DAT Video: SN1 vs SN2 Explained — High-Yield Organic Chemistry | DAT Destroyer | OAT Destroyer

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SN1 vs SN2 is one of the most tested reaction mechanisms on both the DAT and OAT, and many students still struggle to decide which pathway a substitution reaction will follow.
Dr. Romano breaks down the key concepts step-by-step in this short teaching video.





What this video covers:
• The difference between unimolecular and bimolecular substitution
• When carbocation formation occurs
• Solvent effects (polar protic vs polar aprotic)
• Nucleophile strength
• Substrate structure and steric effects
• Why SN1 gives racemization and SN2 gives inversion


If you are preparing for the DAT or OAT, mastering these fundamentals is essential.




If you’re preparing for the DAT or OAT, the Math Destroyer and the full DAT/OAT Destroyer series are designed to strengthen your problem-solving skills with targeted, exam-focused practice.


Learn more about our resources here:
Math Destroyer | 720 DAT & OAT Quantitative Reasoning Questions
🦷 DAT Destroyer – The Proven Study System for the Dental Admission Test


For additional free help, join our DAT Destroyer Study Group on Facebook. Inside the group you’ll find:
• Dr. Romano’s Free Biology Review (in the Files section)
• Daily math questions posted by our team
• A supportive community of motivated students




We also offer DAT and OAT classes — available both online and in-person at Snug Harbor:
2026 Winter DAT and OAT Classes with Dr. Jim Romano | In Person or Online
 
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