Question detail
During the electrolysis of molten potassium bromide, which product is formed 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. Potassium
- B. Bromine
- C. Oxygen
- D. Hydrogen
Answer
Potassium
Explanation
The positive K⁺ ions move to the cathode where they gain electrons to form potassium metal.
Common mistake
Common Mistake in Writing Word Equations
Students often forget to include the states of the reactants and products in their word equations for electrolysis.
Always specify the physical states of the substances (e.g., solid, liquid, gas) when writing word equations to provide a complete representation of the reaction.
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