For preparing monoalkyl benzene, acylation process is preferred than direct alkylation because

Options

A. In alkylation, a poisonous gas is evolved
B. In alkylation, large amount of heat is evolved
C. In alkylation, polyalkylated product is formed
D. Alkylation is very costly

Answer

C

Explanation

Friedel – Craft’s alkylation

As + I effect of R  initiates the resonance effect and activates the ring in ortho and para positions, poly alkylated product is formed.