Which one of the following is least basic ?A. AnilineB. DiethylamineC. – InterviewSolution

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1.	Which one of the following is least basic ?A. AnilineB. DiethylamineC. `p-`sulphanilic acidD. `o-`nitroaniline
Answer» Correct Answer - D o-Nitroaniline is least basic. Therefore, the order of basic strength is o-nitroaniline `lt` aniline `lt` p-sulphanilic acid `lt` diethyl amine.

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