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Indicate which reaction will occur faster. Explain your reasoning. Select the si

ID: 489747 • Letter: I

Question

Indicate which reaction will occur faster. Explain your reasoning. Select the single best answer. Reaction of 1-bromopropane with potassium acetate in acetic acid or with potassium methoxide in methanol Potassium acetate in acetic acid will react faster because acetate is the better nucleophile. Potassium methoxide in methanol will react faster because the leaving group encounters less steric hindrance. Potassium methoxide in methanol will react faster because methoxide is the better nucleophile. Potassium acetate in acetic acid will react faster because the leaving group encounters less steric hindrance. O Potassium acetate in acetic acid will react faster because the intermediate is more stabilized in the solvent. Potassium methoxide in methanol will react faster because the intermediate is more stabilized in the solvent.

Explanation / Answer

potassium methoxide in methanol will react faster because methoxide is the better nucleophile is correct.

Explanation: 1-bromopropane is a primary alkyl halide. reaction of primary alkyl halide with a strong nucleophile is SN2 mechanism. SN2 mechanism invovles the strong nucleophile. methoxide ion is a strong nucleophile than acetate ion. so potassium methoxide in methanol will react faster because methoxide is the better nucleophile.