which one has highest dipole moment?1)nitro benzene2)para nitro aniline3)ortho nitro aniline4)meta nitro aniline
alagan , 9 Years ago
Grade 12
2 Answers
Pankaj
Last Activity: 9 Years ago
Nitro group is electron withdrawing while amine group is electron donating in nature. The dipole moment of both nitro and amine group are in the same direction so they add up which increases the dipole moment.
The effect of nitro group is maximum when it is present at p- position , so p-nitroaniline has highest dipole moment.
subhadeep
Last Activity: 3 Years ago
Due to +R effect of amine and -R effect of nitro group, dipole moment is maximum when at para position to each other. This is also called push-pull effect.
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