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Question
Amino group is ortho, para directing for aromatic electrophilic substitution. On nitration of aniline with concentrated acids, a good amount of meta nitro aniline is obtained. This is due to
Options:
A .  - NH2 becomes - NH -NO2+, which is meta directing
B .  - NH2 becomes - NH +SO4-2, which is meta directing
C .  - NH2 becomes - NH3 +, which is meta directing
D .  In nitration mixture, ortho and para activity of NH3 group is completely lost
Answer: Option C
:
C
NH2 is o & p - directing group where as NH3+ is meta directing group

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