JEE Main 2023 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 13 April 2023, Shift 2, Chemistry Q69

Question 69 of 90 in this shift, Chemistry question 9 of 30, Section A.

The correct group of halide ions which can be oxidised by oxygen in acidic medium is

(1) $\mathrm{Br^{-}}$ and $\mathrm{I^{-}}$ only
(2) $\mathrm{Cl^{-}}$ , $\mathrm{Br^{-}}$ and $\mathrm{I^{-}}$ only
(3) $\mathrm{I^{-}}$ onlyOfficial answer
(4) $\mathrm{Br^{-}}$ only

Official answer

Option 3

NTA final key.

Chapter: Electrochemistry
Topic: Group 17 & 18
Idea tested: Reducing Character of Hydrogen Halides

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