The Rate Law for the Reaction H₂O₂ + 2H⁺ $\rarr$ I₂ + 2H₂O Is Rate = K[H₂O₂][I ^-]

question 94

Multiple Choice

The rate law for the reaction H₂O₂ + 2H⁺ + 2I ^- $\rarr$ I₂ + 2H₂O is rate = k[H₂O₂][I ^-]. The following mechanism has been suggested. H₂O₂ + I ^- $\rarr$ HOI + OH ^- slow
OH ^- + H⁺ $\rarr$ H₂O fast
HOI + H⁺ + I ^- $\rarr$ I₂ + H₂O fast
Identify all intermediates included in this mechanism.

• A)H⁺ and I ^-
• B)H⁺ and HOI
• C)HOI and OH^-
• D)H⁺ only
• E)H₂O and OH^-

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