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Question

Which of the following is an electrophilic substitution reaction?



Correct Answer
A

C6H6+Br2 FeBr3−−− C6H5Br+HBr

Your Answer
B

R2H|C Cl R2C:

Your Answer
C

Cl22Cl

Your Answer
D

None of these


Solution

The correct option is B

C6H6+Br2 FeBr3−−− C6H5Br+HBr


What is Electrophilic substitution?

 Replacement of an atom/ ion from a molecule by an electrophile.

(i) Formation of electrophile :

Br  Br + FeBr3Br+ + FeBr4

(ii) Br+ is an electrophile and it attacks the electron-rich benzene ring :

 

Aromatic carbonium ion is resonance stabilised

(i)Elimination of proton :

 

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