Explain electrophilic aromatic substitution?

Electrophilic aromatic substitution (SEAr) is an organic reaction in which an atom that is attached to an aromatic system (usually hydrogen) is replaced by an electrophile.

An electrophile is reagent that is attracted to electrons (it means electron lover!)

(Use diagram to show mechanism c.f nitration) 

DJ

Related Chemistry A Level answers

All answers ▸

Explain why the first ionisation energy of barium is less than the first ionisation energy of calcium.


If you could give your best revision tip for exam preparation what would it be?


What is a formula of Potassium Sulfate?


Providing reasoning, what is the trend in the atomic radius of row 3 elements across the periodic table?