Question bank/JEE Main/Chemistry

JEE MainChemistryModerateInorganic Chemistry

Which one of the following is an amphoteric oxide?

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ZnO is an amphoteric oxide and dissolves readily in acids
forming corresponding zinc salts and alkalies forming zincates.
ZnO+H2SO4→ZnSO4+H2OZnO + H_{2}{SO}_{4} \rightarrow {ZnSO}_{4} + H_{2}O zinc sulphate
ZnO+2NaOH→Na2ZnO2+H2OZnO + 2NaOH \rightarrow {Na}_{2}{ZnO}_{2} + H_{2}O sodium zincate

Source: Grass-G / CH-28 Chemistry Paper FST 16 Jan.docx

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