The electrophilic addition reaction between sulfuric acid H2SO4 and propene C3H6 involves the following steps:1. Protonation of the alkene: In the first step, the alkene propene acts as a nucleophile and attacks the electrophilic hydrogen atom of sulfuric acid. This results in the formation of a carbocation intermediate and a bisulfate ion HSO4- .C3H6 + H2SO4 -> [C3H7+] + [HSO4-]2. Nucleophilic attack by the bisulfate ion: The carbocation intermediate formed in the previous step is now attacked by the nucleophilic bisulfate ion HSO4- . The bisulfate ion donates a pair of electrons to form a bond with the carbocation, resulting in the formation of the final product.[C3H7+] + [HSO4-] -> C3H7OSO3HThe product formed in this reaction is 2-hydroxypropyl hydrogen sulfate C3H7OSO3H , which is an alkyl hydrogen sulfate. This reaction is an example of electrophilic addition of sulfuric acid to an alkene, where the alkene acts as a nucleophile and the sulfuric acid acts as an electrophile.