Verified Solution • 2025–26 Session moderate

QJEEAdv17Chba29: JEE Advanced 2017 Chemistry - Class 12 JEEAdv17Chba29 Solution: The reactions, to and to are

The reactions, QQ to RR and RR to S,S, are

Multiple Choice Options

  • A Dehydration and Friedel −- Crafts acylation
  • B Aromatic sulfonation and Friedel −- Crafts acylation
  • C Friedel −- Crafts alkylation, dehydration and Friedel −- Crafts acylation
  • D Friedel −- Crafts alkylation and Friedel −- Crafts acylation

Step-by-Step Verified Solution

The reaction Q→R\mathrm{Q} \rightarrow \mathrm{R} and R→S\mathrm{R} \rightarrow \mathrm{S} Friedel-Crafts alkylation and Friedel-Crafts alkylation is the introduction of alkyl group into benzene ring in presence of lewis acid catalyst such as anhydrous AlCl3\mathrm{AlCl}_3 . Friedel Crafts acylation is the introduction of acyl group into benzene ring in presence of lewis acid catalyst such as anhydrous AlCl3\mathrm{AlCl}_3 .

Related Learning Resources & Exam Preparation

JEE Advanced PYQ Question Bank
Browse year-wise authentic previous years' questions with solutions
Authentic CBT Mock Tests
Simulate official exam environment with live timer and percentile scoring