Which of the following statements are TRUE regarding the Unimolecular Nucleophilic Substitution () m — Reaction Mechanism Chemistry Question

💡 Solution & Explanation

$S_N1$ proceeds via a planar carbocation intermediate (A is true). Because the carbocation is planar, nucleophilic attack from either face is almost equally probable, leading to a racemic mixture (C is true). Polar protic solvents (like water or ethanol) favor $S_N1$ by stabilizing both the carbocation and the leaving group anion (B is false). $Ag^+$ ions precipitate halogens as $AgX$, strongly promoting carbocation formation and accelerating the reaction (D is false).