1. A. Consider the following two steps (I) and (II) of a reaction mechanism. I. R -Br R* Br + II. R* + Nu R-Nu What effect will the following have on the rate (increase, decrease or no effect?) a. Using a more polar solvent.----- b. Using a stronger nucleophile.- c. Using a more concentrated nucleophile. d. Increasing the temperature of the reaction. .

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**1. A. Consider the following two steps (I and II) of a reaction mechanism.**

**I.**  
\[ \text{R—Br} \rightarrow \text{R}^+ + \text{Br}^- \]

**II.**  
\[ \text{R}^+ + \text{Nu}^- \rightarrow \text{R—Nu} \]

What effect will the following have on the rate (increase, decrease or no effect)?

a. Using a more polar **solvent**  
b. Using a stronger **nucleophile**  
c. Using a more concentrated **nucleophile**  
d. Increasing the temperature of the reaction
Transcribed Image Text:**1. A. Consider the following two steps (I and II) of a reaction mechanism.** **I.** \[ \text{R—Br} \rightarrow \text{R}^+ + \text{Br}^- \] **II.** \[ \text{R}^+ + \text{Nu}^- \rightarrow \text{R—Nu} \] What effect will the following have on the rate (increase, decrease or no effect)? a. Using a more polar **solvent** b. Using a stronger **nucleophile** c. Using a more concentrated **nucleophile** d. Increasing the temperature of the reaction
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