Question detail
Explain why reduction occurs at the cathode during electrolysis.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Electrolysis
Question
Explain why reduction occurs at the cathode during electrolysis.
Answer
Reduction occurs at the cathode because positive ions gain electrons from the electrode. This gain of electrons decreases the oxidation state of the ions, resulting in the formation of neutral atoms or molecules.
Explanation
This answer is strong because it clearly defines the process of reduction and links it to the movement of electrons at the cathode. The question tests the student's understanding of electrolysis and the role of electrodes.
Common mistake
Misunderstanding Reduction at the Cathode
Students often confuse reduction with oxidation and incorrectly state that positive ions lose electrons at the cathode.
Remember that reduction involves the gain of electrons. At the cathode, positive ions gain electrons, leading to a decrease in their charge.
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