JAMB Chemistry

Which of the following contains two amphoteric oxides?

Sodium oxide, Zinc oxide, Magnesium oxide

Aluminum oxide, Calcium oxide, Zinc oxide

Pottasium oxide, Lithium oxide, Carbon dioxide

Silver oxide, Lead oxide, Sodium oxide

Correct answer: B

An amphoteric oxide is a metallic oxide that acts both as an acid and as a base. The two most common amphoteric oxides are Zinc Oxide — $ZnO$ and Aluminum oxide — $Al_2O_3$ . Aluminum oxide, calcium oxide, zinc oxide is the correct answer as the two most common amphoteric oxides are included among them.

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Which of the following contains two amphoteric oxides?

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