Question detail
Which of the following metals would require electrolysis for extraction from its molten compound? A) Gold B) Iron C) Sodium D) Copper
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactivity of metals
Question
Which of the following metals would require electrolysis for extraction from its molten compound? A) Gold B) Iron C) Sodium D) Copper
Answer
C) Sodium
Explanation
Sodium is a highly reactive metal that cannot be extracted using carbon reduction methods, making electrolysis necessary for its extraction. This question tests the student's knowledge of the reactivity series and the extraction methods associated with different metals.
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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