Home
Class 12
CHEMISTRY
Amino group, -NH(2) is ortho, para-direc...

Amino group, `-NH_(2)` is ortho, para-directing group in case of aromatic electrophilic substitution but nitration of aniline produce a good amount of m-nitroaniline. This is because

A

In nitration mixture, ortho, para-activity of `NH_(2)` group is completely lost

B

`-NH_(2)` becomes `-NH_(3)^(+)` which is m-directing

C

`-NH_(2)` becomes `-NH^(+)SO_(4)^(-)` which is m-directing

D

`-NH_(2)` becomes `NH^(-)NO_(s)^(+)`, which is m-directing

Text Solution

Verified by Experts

The correct Answer is:
B
On direct nitration of aniline, lone pair of electrons present at nitrogen atom will accept proton from the nitrating mixture to give anilium ion which is meta directing
Promotional Banner

Similar Questions

Explore conceptually related problems

Meta-directing and deactivating group in the aromatic electrophilic substitution is :

Knowledge Check

  • Amino group is ortho, para-directing for aromatic electrophilic substituion. On nitration of aniline, a good amount of m-nitroaniline is obtained. This is the to

    A
    In nitration mixture, ortho, para-activity of `NH_(2)` group is completely lost
    B
    `-NH_(2)` becomes `-NH_(3)^(+)`, which is m-directing
    C
    `-NH_(2)` becomes `-NH^(+)SO_(4)^(-)` which is m-directing
    D
    `-NH_(2)` becomes `NH^(-)NO_(2)^(+)`, which is m-directing.

  • Amino grup is ortho, para-directing for aromatic electrophilic substitution, On nitration of aniline, a good amount of m-nitroaniline is obtained. This is due to :

    A
    in nitration mixture, ortho-, para-activity of `-NH_(2)` group is completely lost
    B
    `-NH_(2)" bencomes " NH_(3)^(+),"which is m-directing"`
    C
    `-NH_(2)" bencomes "-NH^(+)SO__(4)^(-), "which is m-directing"`
    D
    `-NH_(2)" bencomes "-NH^(-)SO_(4)^(-)," which is m-directing "`

  • Amino group is ortho-, para-directing for aromatic electrophilic substitution. On nitration of aniline, good amount of m-nitroaniline is obtained. This is due to-

    A
    Amino group is ortho-,para-directing for aromatic electrophilic substitution. On nitration of aniline, good amount of m-nitroaniline is obtained. This is due to
    B
    `-NH_(2)` get conveted `-NH_(3)^(+)`, which is m-directing
    C
    `-NH_(2)` becomes `-NH^(+)SO_(4)^(-)`, which is m-directing
    D
    `-NH_(2)` becomes `-NH^(-)NO_(2)^(+)`, which is m-directing