Aluminium oxide is_________________?
Correct answer: C. Amphoteric oxide
- A. Acidic oxide
- B. Basic oxide
- C. Amphoteric oxide
- D. It does not exists
Explanation
Aluminium oxide reacts with both acids and bases, forming aluminium salts with acids and aluminates with bases, so it is amphoteric. Students often choose basic oxide because aluminium is a metal, but metallic character alone does not make all metal oxides purely basic.
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About Reactions of Group IV Elements
Group IV, or Group 14, chemistry covers the trends from carbon and silicon to tin and lead, including their reactions with oxygen, halogens, water, acids and alkalis. It also examines the structures and properties of their oxides and chlorides, oxidation states, and the inert pair effect, rather than treating all members as equally metallic.
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