Consider the Following Mechanism for the Oxidation of Bromide Ions

question 12

Multiple Choice

Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution. H⁺ + H₂O₂ 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?

• A) 2H₂O⁺-OH + 2Br^- → H₂O₂ + Br₂ + 2H₂O
• B) 2H⁺ + 2Br^- + H₂O₂ → Br₂ + 2H₂O
• C) 2H⁺ + H₂O₂ + Br^- + HOBr → H₂O⁺-OH + Br₂ + H₂O
• D) H₂O⁺-OH + Br^- + H⁺ → Br₂ + H₂O
• E) None of these choices are correct.

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Definitions:

Reuptake

The process by which neurotransmitters are taken back into the neurotransmitter vesicles in the nerve cells after they have been released.

Serotonin

A neurotransmitter associated with mood regulation, digestion, sleep, and other bodily functions, playing a key role in preventing depression and regulating anxiety.

Axon Terminal

The endpoint of an axon or nerve fiber, where it makes synaptic connections with another nerve cell or muscle cell.

Selective Permeability

A property of cellular membranes that allows certain substances to pass through while keeping others out.