Activation of benzene by $- {N H}_{2}$ group can be reduced by treating the compound with:

acetic acid

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acetyl chloride

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dilute HCl

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methyl alcohol

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Solution

The correct option is A acetyl chloride
In aniline, the amino group is an electron releasing group.
It activates the benzene ring towards electrophilic aromatic substitution reaction.
When aniline is acetylated with acetyl chloride, acetanilide is formed.
$C H_{3} C O N H -$ group is less activating group than amino group.
Hence, activation of benzene by $- N H_{2}$ group can be reduced by treating the compound with acetyl chloride.

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Similar questions

Q. Activation of benzene by -

N H_{2}

group can be reduced by treating the compound with :

Q. Which of the following side chain reaction/s can be used to reduce the activity groups such as

(O H)

(- {N H}_{2})

A : Nitration of aniline can only be done by protecting $- N H_{2}$ group through acetylation.
R : Acetylation of aniline results in the increase of electron density at the benzene ring.

Q. The conversion of

- C O O H

group to

- N H_{2}

group can be made by:

Q. Why does acetylation of

- N H_{2}

group of aniline reduce its activity ?

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Activation of benzene by −NH2 group can be reduced by treating the compound with:

Activation of benzene by $- {N H}_{2}$ group can be reduced by treating the compound with: