JEE Exam  >  JEE Questions  >  The bromination of benzene in presence of FeB... Start Learning for Free
The bromination of benzene in presence of FeBr₃ is an example of
  • a)
    electrophilic addition
  • b)
    free radical addition
  • c)
    electrophilic substitution
  • d)
    nucleophilic addition
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The bromination of benzene in presence of FeBr is an example ofa)elect...
Electrophilic Substitution: Bromination of Benzene

Electrophilic substitution is a type of organic reaction in which an electrophile replaces a functional group or atom in a molecule. The bromination of benzene in the presence of FeBr is an example of electrophilic substitution.

Mechanism of Electrophilic Substitution

1. Generation of Electrophile

In the bromination of benzene, an electrophile is generated by the reaction between bromine and iron (III) bromide. The electrophile generated is Br+.

Br2 + FeBr3 → Br+ + FeBr4-

2. Formation of Sigma Complex

The electrophile Br+ then forms a sigma complex with the benzene ring. The pi electrons of the benzene ring are attracted towards the electrophile and form a bond with the Br+ ion.

3. Rearrangement of Sigma Complex

The sigma complex then undergoes a rearrangement in which the carbon-carbon single bonds are broken, and the pi electrons are rearranged. This rearrangement leads to the formation of a new intermediate called arenium ion.

4. Loss of Proton

The arenium ion then loses a proton to form the final product, which is bromobenzene.

Overall Reaction

The overall reaction for the bromination of benzene is as follows:

C6H6 + Br2 → FeBr3/Br2 C6H5Br + HBr

Conclusion

The bromination of benzene is an example of electrophilic substitution, in which an electrophile replaces a hydrogen atom on the benzene ring. This reaction is important in organic chemistry as it is a key step in the synthesis of many important organic compounds.
Free Test
Community Answer
The bromination of benzene in presence of FeBr is an example ofa)elect...
Electrophilic Substitution in Bromination of Benzene

The bromination of benzene in the presence of FeBr3 is an example of electrophilic substitution.

Electrophilic substitution is a type of organic reaction in which an electrophile replaces a functional group in a molecule. In the bromination of benzene, an electrophile (FeBr3) is added to the benzene ring. This creates a positively charged intermediate, which is then attacked by a negatively charged bromide ion. The final product is bromobenzene.

Mechanism of Electrophilic Substitution

1. Formation of a Complex

FeBr3 acts as a Lewis acid and forms a complex with the bromine molecule. This complex is a stronger electrophile than the bromine molecule alone.

2. Generation of a Positive Charge

The complex formed between FeBr3 and the bromine molecule is then attacked by a lone pair of electrons on the benzene ring. This results in the formation of a positively charged intermediate.

3. Attack by a Nucleophile

The positively charged intermediate is attacked by a negatively charged bromide ion. This results in the formation of the final product, bromobenzene.

Overall Reaction

The overall reaction for the bromination of benzene is as follows:

C6H6 + Br2 → FeBr3 C6H5Br + HBr

Conclusion

The bromination of benzene in the presence of FeBr3 is an example of electrophilic substitution. This reaction involves the formation of a complex, the generation of a positive charge, and the attack by a nucleophile. The final product is bromobenzene.
Explore Courses for JEE exam
The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer?
Question Description
The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The bromination of benzene in presence of FeBr is an example ofa)electrophilic additionb)free radical additionc)electrophilic substitutiond)nucleophilic additionCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev