Hydrocarbons Question 151
Question: Which of the following would be least reactive towards bromine [NCERT 1981]
Options:
A) Nitrobenzene
B) Phenol
C) Anisole
D) Chlorobenzene
Show Answer
Answer:
Correct Answer: A
Solution:
Nitrobenzene is least reactive towards bromine because of presence of $ -NO_2 $ group decreases electron density at o and p positions and hence attack of electrophile on the benzene nucleus is difficult because + ve charge on o and p position repel the incoming electrophile.
BETA
