🦷 DAT Exam Prep

An SN2 reaction mechanism involves:

A A two-step process
B A one-step concerted process with backside attack and inversion of configuration
C Radical intermediates
D Elimination only

✓ Correct Answer: Option B

SN2: single step, bimolecular. Nucleophile attacks from behind, inverts stereochemistry (Walden inversion). Favored by primary substrates.

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