What is the reaction when aluminum oxide reacts with sodium hydroxide?

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Solution

Reaction of Aluminum oxide with sodium hydroxide:
When aluminum oxide $({Al}_{2} O_{3})$ reacts with sodium hydroxide $(NaOH)$ solution, it forms sodium aluminate $({NaAlO}_{2})$ and water $(H_{2} O)$ .
This reaction takes place at a temperature of $900 - 1100 ° C$ .
In this reaction, aluminum oxide behaves as an acid.
The chemical reaction can be depicted as:
${Al}_{2} O_{3} (s) + 2 NaOH (aq) \to 2 {NaAlO}_{2} (aq) + H_{2} O (l)$

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