Question detail
What is the role of the cathode in electrolysis, and what type of ions are attracted to it?
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
What is the role of the cathode in electrolysis, and what type of ions are attracted to it?
Answer
The cathode is the negative electrode in electrolysis where reduction occurs. Positive ions are attracted to the cathode because they are seeking to gain electrons.
Explanation
This answer effectively describes the function of the cathode and the type of ions that move towards it, demonstrating an understanding of the electrolysis process. The question assesses recall and comprehension of key concepts.
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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