Which of the following compound is expected to undergo fastest electrophilic aromatic substitution than unsubstituted benzene

Which of the following compound is expected to undergo fastest electro

1.	Which of the following compound is expected to undergo fastest electrophilic aromatic substitution than unsubstituted benzene
Answer» Solution :GROUP which INCREASES ELECTRON DENSITY on benzene ring help the compound to undergo faster electrophilic aromatic substitution.