The product $(B)$ in the above reaction is:

Acylation process is preferred over direct alkylation in the Friedel-Crafts reaction because:

What is the product formed when chloroform reacts with benzene in the presence of $AlCl_3$?

Given the following structures:
$(I)$ $1,3,5-$trimethylbenzene (mesitylene)
$(II)$ $1,3-$dimethyl$-5-$methylenecyclohexa$-1,3-$diene
$(III)$ $1,3,5-$trimethylenecyclohexane
The enthalpy of hydrogenation of these compounds will be in the order as:

Identify the major product of the following reaction:

The product obtained by the reaction of benzene with $CH_3COCl$ in the presence of $AlCl_3$ is .....