JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 29 July 2022, Shift 2, Chemistry Q80

Question 80 of 90 in this shift, Chemistry question 20 of 30, Section A.

A compound ‘X’ is a weak acid and it exhibits colour change at pH close to the equivalence point during neutralization of NaOH with

\mathrm{CH_3COOH}

. Compound ‘X’ exists in ionized form in basic medium. The compound ‘X’ is

(1)methyl orange
(2)methyl red
(3)phenolphthaleinOfficial answer
(4)erichrome Black T

Official answer

Option 3

NTA final key.

Chapter: Equilibrium
Topic: pH and Buffers
Idea tested: Acid-Base Indicator Transition Range

Same topic in other shifts

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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.