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Consider the Following Mechanism for the Oxidation of Bromide Ions

question 88

Multiple Choice

Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H+ + H2O2 Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H<sup>+ </sup> + H<sub>2</sub>O<sub>2</sub>   H<sub>2</sub>O<sup>+</sup>-OH (rapid equilibrium)  H<sub>2</sub>O<sup>+</sup>-OH + Br<sup>-</sup> <font face= symbol ></font> HOBr + H<sub>2</sub>O (slow)  HOBr + H<sup>+</sup> + Br<sup>-</sup> <font face= symbol ></font> Br<sub>2 </sub>+ H<sub>2</sub>O (fast)  What is the overall reaction equation for this process? A)  2H<sub>2</sub>O<sup>+</sup>-OH + 2Br<sup>- </sup> <font face= symbol ></font> H<sub>2</sub>O<sub>2 </sub>+ Br<sub>2 </sub>+ 2H<sub>2</sub>O B)  2H<sup>+</sup> + 2Br<sup>-</sup> + H<sub>2</sub>O<sub>2 </sub><font face= symbol ></font> Br<sub>2 </sub>+ 2H<sub>2</sub>O C)  2H<sup>+</sup> + H<sub>2</sub>O<sub>2 </sub>+ Br<sup>-</sup> + HOBr <font face= symbol ></font> H<sub>2</sub>O<sup>+</sup>-OH + Br<sub>2 </sub>+ H<sub>2</sub>O D)  H<sub>2</sub>O<sup>+</sup>-OH + Br<sup>-</sup> + H<sup>+</sup> <font face= symbol ></font> Br<sub>2 </sub>+ H<sub>2</sub>O E)  none of the above H2O+-OH (rapid equilibrium)
H2O+-OH + Br- HOBr + H2O (slow)
HOBr + H+ + Br- Br2 + H2O (fast)
What is the overall reaction equation for this process?


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