Electrophile-C⊕H3, CO2, SO3
Electron loving species which attack at − electron rich center of molecule is known as Electrophile. C⊕H3 is positively charged species hence, it is electrophile.CO2 and SO3 are electrophile due to polar Π− bond. N⊕H4 or H3O⊕ are not electrophile but if they release H+ ion , then it acts as a electrophile.