Question

Reaction of benzene when mixed with sulfuric acid

Answer 1

Answer:

Benzenesulfonic acid

Explanation:

Sulfonation of benzene includes an electrophilic substitution reaction that occurs between benzene and sulfuric acid. There are two equivalent ways of sulfonating benzene: The first way involves heating of benzene under reflux of concentrated fuming sulfuric acid for several hours at 40°C. The product formed is benzenesulfonic acid.

Answer 2

To produce benzenesulfonic acid from benzene, fuming sulfuric acid and sulfur trioxide are added. Fuming sulfuric acid, also refered to as oleum, is a concentrated solution of dissolved sulfur trioxide in sulfuric acid. The sulfur in sulfur trioxide is electrophilic(attract towards electons) because the oxygens pull electrons away from it because oxygen is very electronegative. The benzene attacks the sulfur (and subsequent proton transfers occur) to produce benzenesulfonic acid.