JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 4 April 2024, Shift 2, Chemistry Q72

Question 72 of 90 in this shift, Chemistry question 12 of 30, Section A.

When

\mathrm{MnO_2}

and

\mathrm{H_2SO_4}

is added to a salt (A), the greenish yellow gas liberated as salt (A) is :

(1) $\mathrm{NaBr}$
(2) $\mathrm{NH_4Cl}$ Official answer
(3) $\mathrm{CaI_2}$
(4) $\mathrm{KNO_3}$

Official answer

Option 2

NTA final key.

Chapter: The p-Block Elements
Topic: Group 17 & 18
Idea tested: Preparation of Chlorine Gas

Same topic in other shifts

All Group 17 & 18 questions

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