In the following reactions, ZnO is respectively acting as a/an: (i)ZnO+Na2O→Na2ZnO2 (ii)ZnO+CO2→ZnCO3
A
Basic and Acid
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B
Base and Base
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C
Acid and Acid
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D
Acid and Base
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Solution
The correct option is D Acid and Base Zinc oxide (ZnO) when reacted with Na2O acts as an acid while with CO2, it act as a base. Therefore, it is an amphoteric oxide. ZnOAcid+Na2OBase→Na2ZnO2Salt