Question

what is electrophilic substitution

Answer 1

Electrophilic substitution reactions are chemical reactions in which an electrophiledisplaces a functional group in a compound, which is typically, but not always, a hydrogenatom. Electrophilic aromatic substitution reactions are characteristic of aromaticcompounds, and are important ways of introducing functional groups of benzenerings. The other main type of electrophilic substitution reaction is an electrophilic aliphatic substitution reaction.

Answer 2

The ions which love electrons for you can say have tendency to gain electrons are electrophiles. Now this property is shown by positively charged ions.

When in any reaction any stronger electrophile substitute or replace a comparatively weaker electrophile, then the reaction is termed as electrophilic substitution reaction.