Question

Which of the following statements is/are incorrect ?
A. Nitrobenzene will give meta-nitrotoluene on reaction with `CH_3Cl//AlCl_3`
B. Chlorobenzene will give meta-substituted product on electrophilic substitution since it exerts -I gt + M effect.
C. n-Propyl benzene can be easily obtained on Friedral crafts alkylation of benzene with n-propyl chloride.
D. Toluene can be obtained in better yield when excess of benzene with react with `CH_3Cl//AlCl_3`.

Answer 1

Correct Answer - A::B::C
(A)In highly de-activated ring Friedal Crafts reaction is not possible.
(B)Chloro group is ortho-para director.
(C )In Friedal Craft reaction the electrophile carbocation rearranges.
(D)To avoid polyalkylation aromatic substrate is taken in excess.