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One pathway can be described as follows: H2O2 + 3 I- + 2 H+ I3- + 2 H2O Step 1.

ID: 993883 • Letter: O

Question

One pathway can be described as follows:

H2O2 + 3 I- + 2 H+ I3- + 2 H2O

Step 1. H2O2 + H+ H3O2+

Step 2. H3O2+ + I- H2O + HOI

Step 3. HOI + I- OH- + I2

Step 4. OH- + H+ H2O

Step 5. I2 + I- I3-

Which of the following statements about this reaction are true?

H3O2+ is a catalyst in this reaction

If the first step of the reaction is the slow step the reaction is second order overall

I- is an intermediate in this reaction

HOI is a product in this reaction

Based on this mechanism, this reaction is an exothermic reaction

Explanation / Answer

just the second statement is true.