Aluminum oxide is:
Correct answer: C. Amphotric
- A. Acidic
- B. Basic
- C. Amphotric
- D. None of these
Explanation
Aluminium is amphoteric. It dissolves in both acids and bases with the liberation of hydrogen gas.Aluminium reacts slowly with dilute acid and more rapidly with concentrated hydrochloric acid to displace hydrogen.Aluminium dissolves in both sodium and potassium hydroxides to form a soluble aluminate, with the evolution of hydrogen.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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