The Half-Reaction Occurring at the Cathode During Electrolysis of an Aqueous

question 123

Multiple Choice

The half-reaction occurring at the cathode during electrolysis of an aqueous copper(II) iodide solution is

• A)I₂ + 2e^- \(\rarr\) 2I^-.
• B)Cu \(\rarr\) Cu²⁺ + 2e^-.
• C)Cu²⁺ + 2e^- \(\rarr\) Cu.
• D)2I^- \(\rarr\) I₂ + 2e^-.
• E)2e^- + 2H₂O \(\rarr\) H₂ + 2OH^-.

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Definitions:

Conservative Behavior

A tendency to prefer traditional and established ways of doing things over new approaches.

Upward Counterfactual Thinking

The mental process of comparing current outcomes with more positive, alternative scenarios, often leading to feelings of dissatisfaction or motivation for improvement.

Downward Counterfactual Thinking

The mental process of imagining worse alternatives to events that have already occurred, often leading to feelings of relief or contentment.

Illusion Of Control

A cognitive bias that leads individuals to overestimate their ability to control events.