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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