JEE Main 2020ChemistryAlcohols Phenols and EthersMediumNumerical

JEE Main 2020Alcohols Phenols and Ethers Question with Solution

JEE Main 2020 (06 Sep Shift 2)

Question

A solution of phenol in chloroform when treated with aqueous NaOH gives compound Pas a major product. The mass percentage of carbon in P is ______ .

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Show full solutionCorrect answer: 69
Correct answer
69

Step-by-step explanation

Reimer-Tiemann formylation reaction :

  

Molecular formula of product is C7H6O2

Percentage weight of carbon=84122×100=68.85%

 

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About this question

This is a previous-year question from JEE Main 2020, 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.