JEE Main 2017 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 2 April 2017 (offline), Chemistry Q47

Question 47 of 90 in this shift, Chemistry question 17 of 30.

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

\mathrm{ZnO+Na_2O\rightarrow Na_2ZnO_2}

(b)

\mathrm{ZnO+CO_2\rightarrow ZnCO_3}

(1)acid and acid
(2)acid and baseOfficial answer
(3)base and acid
(4)base and base

Official answer

Option 2

CBSE answer key (25/04/2017, used for result).

Chapter: The d- and f-Block Elements
Topic: d-Block Elements
Idea tested: Acid-Base Character of Oxides

Same idea in other shifts

Asked 5× in all

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Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.