Question detail
What is produced at the anode during the electrolysis of molten lead bromide?
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. Lead
- B. Bromine
- C. Hydrogen
- D. Oxygen
Answer
Bromine
Explanation
During the electrolysis of molten lead bromide, bromine is produced at the anode as negative bromide ions lose electrons.
Common mistake
Confusing electrolysis with simple decomposition
Students think electrolysis is the same as a chemical decomposition reaction that occurs spontaneously, without the need for electricity or ion movement.
Explain that electrolysis is a specific type of decomposition that requires an external electric current to drive the separation of ions in a molten or aqueous ionic compound into their constituent elements at the electrodes.
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