Question

why is Aluminium oxide is an amphoteric oxide support your answer with reaction

Answer 1

Aluminium oxide is an amphoteric oxide because it reacts both with acids (in dilute condition) and alkalis(conc) to give salt and water.

For example:

Al2O3 + HCl ------> AlCl3 + H2O
Al2O3 + H2SO4 -------> Al2(SO4)3 + H2O
Al2O3 + NaOH + H2O --------> NaAlO2 + H2O
Al2O3 + KOH + H2O ------> KAlO2 + H2O



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Answer 2

Answer:

Aluminium oxide is termed as an amphoteric oxide as it shows chemical reactivity with both acids as well as bases. ... In this reaction, aluminium oxide behaves as a basic oxide and reacts with an acid to produce salt and water.

Explanation: