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Amines

Question
CBSEENCH12009006
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Explain what happens when aniline reacts with a mixture of sulphuric acid and nitric acid?

Solution
Being a strong oxidising agent, HNO3 oxides aniline into tert oxidation product on treating it with conc. H2SO4 and HNO3. However, under controlled conditions, m-nitroaniline is formed along with some amount of p-nitroaniline. This is due to the reason that under strongly acidic conditions — NH, a group of aniline is converting into —NH3+(anilinium ion) which is m-directing, thus the major product is m-nitroaniline.

Some More Questions From Amines Chapter

What type of isomerism is exhibited by different pairs of amines?

How will you convert Benzene into N, N-dimethylaniline?

Arrange the following in increasing order of their basic strength:
C2H5NH2, C6H5NH2, NH3, C6H5CH2NH2 and (C2H5)2NH

Arrange the following in increasing order of their basic strength:
C2H5NH2, (C2H5)2NH, (C2H5)3N, C6H5NH2

Arrange the following in increasing order of their basic strength:
CH3NH2, (CH3)2NH, (CH3)3N, C6H5NH2, C6H5 CH2NH2

Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

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