Electron Density on benzene Ring

Which of the following compounds / ion has maximum electron density in benzene ring?

Assertion: Phenol is more reactive than benzene towards electrophilic reactions. Reason : The +R effect of OH group increases the electron density on benzene nucleus.

A: Nitration of aniline can only be done by protecting -NH_2 group through acetylation. R: Acetylation of aniline results in the increase of electron density on the benzene ring.

The halogen that best delocalizes the electron density to the benzene ring is

Benzene and other aromatic hydrocarbons, though contain pi -bonds, yet they behave as saturated hydrocarbons. They are stable because of delocalisation of cloud. These undergo electrophilic substitution reactions as : C_(6)H_(5)-H + YZ to C_(6)H_(5)Y +HZ The reactivity of aromatic hydrocarbons towards electrophilic substitution depends upon the electron density in the benzene ring Nitration of benzene undergoes in the presence of

Benzene and other aromatic hydrocarbons, though contain pi -bonds, yet they behave as saturated hydrocarbons. They are stable because of delocalisation of cloud. These undergo electrophilic substitution reactions as : C_(6)H_(5)-H + YZ to C_(6)H_(5)Y +HZ The reactivity of aromatic hydrocarbons towards electrophilic substitution depends upon the electron density in the benzene ring Which reagent cannot be used in Friedel Craft alkylation of benzene?

Benzene and other aromatic hydrocarbons, though contain pi -bonds, yet they behave as saturated hydrocarbons. They are stable because of delocalisation of cloud. These undergo electrophilic substitution reactions as : C_(6)H_(5)-H + YZ to C_(6)H_(5)Y +HZ The reactivity of aromatic hydrocarbons towards electrophilic substitution depends upon the electron density in the benzene ring The electrophile in sulphonation of benzene is

Benzene and other aromatic hydrocarbons, though contain pi -bonds, yet they behave as saturated hydrocarbons. They are stable because of delocalisation of cloud. These undergo electrophilic substitution reactions as : C_(6)H_(5)-H + YZ to C_(6)H_(5)Y +HZ The reactivity of aromatic hydrocarbons towards electrophilic substitution depends upon the electron density in the benzene ring In the reaction of C_(6)H_(5)Y , the major product is m-isomer. The group Y may be