The Mechanism for the Reaction 2H₂O₂(aq)  2H₂O

question 76

Multiple Choice

The mechanism for the reaction 2H₂O₂(aq)  2H₂O( ) + O₂(g) in the presence of I^-(aq) is proposed to be: Step 1: H₂O₂(aq) + I^-(aq)  H₂O( ) + OI^-(aq)
Step 2: H₂O₂(aq) + OI^-(aq)  H₂O( ) + O₂(g) + I^-(aq)
Which of the following species is an intermediate?

• A) I^-
• B) H₂O₂
• C) H₂O
• D) OI^-
• E) This mechanism has no intermediates.

---

Definitions:

Systemin

A plant peptide hormone involved in defense responses, signaling systemic responses to local damage or attack.

Brassinosteroids

A class of plant hormones that play key roles in plant growth, development, and stress responses, influencing processes from seed germination to flowering.

Oligosaccharins

Short-chain sugars that play a role in signaling and regulating plant growth and defense responses.

Methyl Salicylate

An organic compound used as a flavoring agent and in pain relief medications.