Which of the following S_N2 reactions is the slowest? A)CH₃CH₂CHBrCH₃ + OH^- → CH₃CH₂CHOHCH₃ + Br^- B)CH₃CH₂CHBrCH₃ + H₂O → CH₃CH₂CHOHCH₃ + HBr C)CH₃CH₂CH₂CH₂Br + OH^- → CH₃CH₂CH₂CH₂OH + Br^- D)CH₃CH₂CH₂CH₂Br + H₂O → CH₃CH₂CH₂CH₂OH + HBr

Question

Quizplus · Accepted Answer

In reaction B, only one molecule of reactant is required for the reaction to occur, while in all other reactions, two molecules of reactants are required. This means that reaction B has the lowest rate since it has the least number of collisions between reactant molecules. The rate of a reaction is directly proportional to the number of collisions between reactant molecules. Therefore, the slowest reaction is reaction B.

Which of the Following SN2 Reactions Is the Slowest

Which of the Following S_N2 Reactions Is the Slowest