JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 27 August 2021, Shift 1, Chemistry Q40

Question 40 of 90 in this shift, Chemistry question 10 of 30, Section A.

The nature of oxides

\mathrm{V_2O_3}

and CrO is indexed as ‘X’ and ‘Y’ type respectively. The correct set of X and Y is :

(1)X = amphoteric Y = basic
(2)X = basic Y = basicOfficial answer
(3)X = basic Y = amphoteric
(4)X = acidic Y = acidic

Official answer

Option 2

NTA final key.

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

Same idea in other shifts

Asked 8× in all

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2 Apr 2017 (offline) · Q47In the following reactions, ZnO is respectively acting as a/an : (a) $\mathrm{ZnO+Na_2O\rightarrow Na_2ZnO_2}$ (b)…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.