WAEC Chemistry 2011 Objective — Question 31
Question 31 of 50 from the West African Examinations Council (WAEC) Chemistry 2011 Objective paper, with the correct answer and a full explanation.
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Which of the following metallic oxides is amphoteric?
- A. A. Al2O3Correct
- B. B. Fe2O3
- C. C. MgO
- D. D. Na2O
Explanation
Al2O3 is an amphoteric oxide - a metallic oxide that can react with both acids and bases. Another common amphoteric oxide is ZnO.
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