NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice
Arrange following compounds in decreasing order of rate of electrophilic substitution.
Options
- Ai > ii > iii > iv
- Biii > iv > ii > i
- Ci > iv > ii > iii
- Di > ii > iv > iii
Correct answer
C. i > iv > ii > iii
Step-by-step solution
(I) (II) (III) (IV) More α - H , results in more hyper conjugation, resulting in greater electron density on the benzene ring & hence greater reactivity towards electrophilic substitution.