JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 13 April 2023, Shift 2, Chemistry Q73

Question 73 of 90 in this shift, Chemistry question 13 of 30, Section A.

In the wet tests for detection of various cations by precipitation,

\mathrm{Ba^{2+}}

cations are detected by obtaining precipitate of

(1) $\mathrm{BaSO_4}$
(2) $\mathrm{Ba(OAc)_2}$
(3) $\mathrm{BaCO_3}$ Official answer
(4) $\mathrm{Ba(ox)}$ : Barium oxalate

Official answer

Option 3

NTA final key.

Chapter: Practical Chemistry (Qualitative Analysis)
Topic: Cation Analysis
Idea tested: Group V Carbonate Precipitation

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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 42 of the 174 JEE Main shifts held from 2017 to 2026.