JEE Main 2017Chemistryd and f Block ElementsMediumMCQ

JEE Main 2017 — d and f Block Elements Question with Solution

JEE Main 2017 (02 Apr)

Question

In the following reactions, ZnO is respectively acting as a/an,

(i) ZnO+Na2O→Na2ZnO2

(ii) ZnO+CO2→ZnCO3

Choose an option

Show full solutionCorrect option: C
Correct answer
Cacid and base.

Step-by-step explanation

Amphoteric means it behaves as both acid and base. Na2O is basic oxide and ZnO will act as acidic oxide in reacting with this oxide. CO2 is acidic oxide and ZnO will act as basic oxide in reacting with this oxide. So, with Na2O, it acts as an acid and with CO2, it acts as a base.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the d and f Block Elements chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

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.