Question detail
Describe the role of the anode and cathode in the process of 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
Describe the role of the anode and cathode in the process of electrolysis.
Answer
In electrolysis, the anode is the positive electrode where negative ions are discharged, losing electrons in the process. The cathode is the negative electrode where positive ions are discharged, gaining electrons. This electron transfer at the electrodes leads to the chemical reactions that produce new substances.
Explanation
This question assesses the student's understanding of the roles of the anode and cathode in electrolysis. The answer highlights the direction of ion movement and the corresponding reactions at each electrode, which is crucial for understanding the electrolysis process.
Common mistake
Misunderstanding Ion Discharge
Students often think that ions are discharged at electrodes simply because they are present in the electrolyte, without understanding the role of electron transfer.
Emphasize that ions are discharged at electrodes during electrolysis due to the gain or loss of electrons, which allows them to become neutral atoms or molecules.
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