JEE Main 2021 — Alcohols Phenols And Ethers Question with Solution
From: JEE Main 2021 (Online) 24th February Morning Shift
Question
Which of the following compound gives pink colour on reaction with phthalic anhydride in
conc. H2SO4 followed by treatment with NaOH ?
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Firstly phthalic anhydride in presence of conc. H2SO4 undergoes
protonation to give an intermediate carbocation. This carbocation
reacts with 2-propylphenol in presence of NaOH to give pink colour
compound.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Alcohols Phenols And Ethers chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Alcohols Phenols And Ethers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.