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What is the Action of the Following Reagents on Aniline? Hot and Conc. Sulphuric Acid - Chemistry

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Short Note

What is the action of the following reagents on aniline?

Hot and conc. sulphuric acid

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Solution

Aniline reacts with conc. sulphuric acid to give anilinium hydrogen sulphate which on heating with sulphuric acid at 453-473 K gives p-aminobenzene sulphonic acid (sulphanilic acid ) as a major product. 

Concept: Amines - Chemical Reactions of Amines - Electrophilic Substitution
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