NEETChemistrySome Basic Concepts of Organic ChemistryMCQ+4 / −1
Which one of the following is most reactive towards electrophilic attack?
- A

- B

- C

- D

View written solutionFree
Correct answer: A
Groups like, –Cl and –NO2
shows –I effect.
–I groups attached to the benzene ring decrease
the electron density in the benzene ring and hence less reactive towards
electrophilic attack.
On the other hand, –OH not only shows –I effect
but also +M effect which predominates the –I
character and electron density is increased in the
benzene ring which facilitates electrophilic attack.
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