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Equilibrium
Question
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In the following reactions, ZnO is respectively acting as a/an :
(a) ZnO + Na2O → Na2ZnO2
(b) ZnO + CO2 → ZnCO3

  • base and acid

  • base and base

  • acid and acid

  • acid and base

Answer

D.

acid and base

ZnO is amphoteric oxide,in given reaction,
(a) ZnO + Na2O → Na2ZnO2
In this reaction ZnO act as Acid.
(b) ZnO + CO2 → ZnCO3
In this reaction ZnO act as Base.

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