Question detail
During the electrolysis of molten lead bromide, what is produced at the cathode?
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. Bromine
- B. Lead
- C. Oxygen
- D. Hydrogen
Answer
Lead
Explanation
Lead is produced at the cathode during the electrolysis of molten lead bromide as lead ions gain electrons.
Common mistake
Confusing Electrolysis Products
Students often confuse the products of electrolysis of molten ionic compounds with those of aqueous solutions, leading to incorrect predictions about what is produced at the electrodes.
To fix this, students should remember that molten ionic compounds typically produce metals at the cathode and non-metals at the anode, while aqueous solutions can produce hydrogen or oxygen depending on the reactivity of the metal and the presence of halide ions.
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