question_answer

Which one of the following is most reactive towards electrophilic attack?

A)                                                                   

B)

C)                                                         

D)         

Correct Answer: C

Solution :

Key Idea: Electron releasing groups stabilise the intermediate cation whereas electron Withdrawing groups destabilise it. The order of electron withdrawing group is: Hence, is most reactive towards electrophilic substitution because?OH group least destabilise the carbocation. Further ?OH group is strongly activating group while ?\[N{{O}_{2}}\] and ?Cl are deactivating group.