Question detail
What happens to negative ions during electrolysis?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Electrolysis
Question
- A. They gain electrons at the cathode
- B. They lose electrons at the anode
- C. They remain unchanged
- D. They move to the electrolyte
Answer
They lose electrons at the anode
Explanation
Negative ions are attracted to the anode where they lose electrons, a process known as oxidation.
Common mistake
Common Mistake in Writing Half Equations
Students often confuse the direction of electron flow and incorrectly write half equations for the cathode, sometimes placing electrons on the wrong side.
Remember that reduction occurs at the cathode, meaning positive ions gain electrons. Always place electrons on the left side of the equation when writing half equations for the cathode.
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