Question

When ethyle benzene reacts with chlorine in persence of ferric chloride then what will product obtain.

Answer 1

In case of substituted aromatic compounds, the functional groups already present directs the next incoming group to a particular position in the aromatic ring. It is called directive influence of the group already attached to the benzene ring. so...chlorine gets attached on para or prathi position ..... fecl3 is a Lewis acid