Question detail
For Extraction of metals and reduction, which reaction focus answer best supports this Unit 4.4 objective: Explain why metals less reactive than carbon can be extracted from oxides by reduction with carbon?
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. Fe₂O₃ → 2Fe - correct reaction focus for reduction
- B. Wrong reaction focus: confuses reduction with a nearby Unit 4.4 chemical change idea
- C. Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for Extraction of metals and reduction
- D. Wrong reaction link: does not support Explain why metals less reactive than carbon can be extracted from oxides by reduction with carbon
Answer
The correct option is Fe₂O₃ → 2Fe - correct reaction focus for reduction.
Explanation
The correct option is "Fe₂O₃ → 2Fe - correct reaction focus for reduction" because it supports the approved learning objective: Explain why metals less reactive than carbon can be extracted from oxides by reduction with carbon. The other options are incorrect or weaker because they are vague, use the wrong Chemistry context, or do not clearly explain the answer for Extraction of metals and reduction.
Common mistake
Misunderstanding Reactivity
Students often think that all metals can be extracted from their ores using carbon, regardless of their reactivity.
Remember that only metals less reactive than carbon can be extracted from their oxides by reduction with carbon.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.