Question detail
Which of the following metals is most likely to require electrolysis for extraction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reactivity of metals
Question
- A. Gold
- B. Copper
- C. Aluminium
- D. Iron
Answer
Aluminium
Explanation
Aluminium is a reactive metal that cannot be extracted from its ore by simple heating and requires electrolysis for extraction.
Common mistake
Misunderstanding Electrolysis Necessity
Students often think that electrolysis is used for all metal extractions, not just for reactive metals.
Clarify that electrolysis is specifically needed for extracting reactive metals from molten compounds, while less reactive metals can be extracted using simpler methods.
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