What are amphoteric oxides? Give two examples of amphoteric oxides.

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asked Apr 25, 2017 in Chemistry by sforrest072 (157,439 points) 61 410 937

1 Answer

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answered Apr 25, 2017 by sarthaks (25,122 points) 9 24 36
 
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Those oxides that behave as both acidic and basic oxides are called amphoteric oxides.
Examples: aluminium oxide (Al2O3)
Al2O3 + 6HCl → 2AlCl3 + 3H2O [ Basic ]
Al2O3 + 2NaOH → 2NaAlO2 + H2O [ Acidic ]
Zinc oxide (ZnO) is also an amphoteric oxide.

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