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Arrange the Following: in Increasing Order of Basic Strength: Aniline, p-nitroaniline And p-toluidine - Chemistry

Arrange the following:

In increasing order of basic strength: Aniline, p-nitroaniline and p-toluidine

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Solution

In p-toluidine, the presence of electron-donating −CH3 group increases the electron density on the N-atom.

Thus, p-toluidine is more basic than aniline.

On the other hand, the presence of electron-withdrawing

−NO2 group decreases the electron density over the N−atom in p-nitroaniline. Thus, p-nitroaniline is less basic than aniline.

Hence, the increasing order of the basic strengths of the given compounds is as follows:

p-Nitroaniline < Aniline < p-Toluidine

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APPEARS IN

NCERT Class 12 Chemistry Textbook
Chapter 13 Amines
Q 4.3 | Page 400
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