Write balanced chemical equations for:
Reaction of aluminium oxide with con. NaOH
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Answer:
Al2O3 + 2NaOH --------- 2NaAlO2 + H2O
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Explanation:
Aluminum oxide reacts with sodium hydroxide to produce sodium aluminate (NaAlO2) and water. This causes the dissolution of aluminum oxide, and the reaction often takes place at a temperature of 900-1100°C. The chemical reaction for the same is -
Al2O3 + 2NaOH → 2NaAlO2 + H2O
Thus, aluminium acts as an amphoteric metal which means that it has both the basic and acidic properties.
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