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Question
Identify the metallic oxide which is amphoteric in nature.
Options
Calcium oxide
Barium oxide
Zinc oxide
Copper oxide
Potassium oxide
MCQ
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Solution
Zinc oxide
Explanation:
An amphoteric oxide is a metallic oxide that exhibits both acidic and basic properties, meaning it can react with both acids and bases to form salt and water. Zinc oxide (ZnO) is amphoteric because it reacts with hydrochloric acid to form zinc chloride and also reacts with sodium hydroxide to form sodium zincate.
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Chapter 1: Periodic Properties and Variations of Properties: Physical and Chemical - Questions from ICSE Examinations [Page 23]
