JEE Main 2017 — D And F Block Elements Question with Solution
From: JEE Main 2017 (Offline)
Question
In the following reactions, ZnO is respectively acting as a/an :
(a) ZnO + Na2O Na2ZnO2
(b) ZnO + CO2 ZnCO3
(a) ZnO + Na2O Na2ZnO2
(b) ZnO + CO2 ZnCO3
Choose an option
Show full solutionCorrect option: C
Correct answer
Cacid and base
Step-by-step explanation
Zinc oxide (ZnO) when react with Na2O it act as acid while with CO2 it act as base. Therefore, it is an amphoteric oxide.
(a) ZnO + Na2O Na2ZnO2
Acid Base Salt
(b) ZnO + CO2 ZnCO3
Base Acid Salt
(a) ZnO + Na2O Na2ZnO2
Acid Base Salt
(b) ZnO + CO2 ZnCO3
Base Acid Salt
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This is a previous-year question from JEE Main 2017, covering the D And F Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.