🦷 DAT Exam Prep

An SN2 reaction is characterized by:

A Carbocation intermediate
B A concerted (one-step) mechanism with backside attack and inversion of configuration
C Multi-step mechanism
D Free radical intermediate

✓ Correct Answer: Option B

SN2: single concerted step, nucleophile attacks from the back, causing Walden inversion. Favored by primary substrates.

💡 Why is B) the correct answer?

The correct answer to the question "An SN2 reaction is characterized by:" is Option B: A concerted (one-step) mechanism with backside attack and inversion of configuration.

The other options — A) Carbocation intermediate, C) Multi-step mechanism, D) Free radical intermediate — are incorrect for this DAT Exam Prep question. As explained above: SN2: single concerted step, nucleophile attacks from the back, causing Walden inversion. Favored by primary substrates.

📚 About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the Organic Chemistry topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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