JEE Main 2021ChemistryCarboxylic Acid DerivativesEasyMCQ

JEE Main 2021Carboxylic Acid Derivatives Question with Solution

JEE Main 2021 (16 Mar Shift 2)

Question

In the above reaction, the reagent "A" is :

Choose an option

Show full solutionCorrect option: C
Correct answer
CAlkaline KMnO4,H+

Step-by-step explanation

KMnO4 in presence of acidic medium shows oxidation reaction. 

It converts carbon into acid if carbon is connected to benzene group directly and having at least one hydrogen with it then it can be converted into acid otherwise not. As shown below:

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About this question

This is a previous-year question from JEE Main 2021, covering the Carboxylic Acid Derivatives 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.