The metals which can produce amphoteric oxides are:(a) sodium and aluminium.
(b) zinc and potassium.
(c) calcium and sodium.
(d) aluminium and zinc
Correct answer: (d) aluminium and zinc.
Explanation: Aluminium and Zinc reacts with both acids and bases. Hence, these are amphoteric in nature. So, the oxides of these elements are amphoteric oxides.
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