Advertisements
Advertisements
प्रश्न
What is the action of the following reagents on aniline?
Hot and conc. sulphuric acid
Advertisements
उत्तर
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.
APPEARS IN
संबंधित प्रश्न
How is chlorobenzene prepared from aniline?
What is the action of acetic anhydride on ethylamine?
What is the action of the following reagents on aniline?
Bromine water
Give reasons for the following:
Aniline does not undergo Friedel- Crafts reaction.
Write the structures of main products when aniline reacts with the following reagents :
Br2 water
Write the chemical equations involved when aniline is treated with the following reagents:
Br2 water
Account for the following:
Although the amino group is o, p-directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Write short notes on acetylation.
What is the action of the following reagents on aniline?
Acetic anhydride
Illustrate the following reactions giving suitable example in each case
Acetylation of amines
How will you convert the following?
Aniline into N−phenylethanamide
In the nitration of benzene using a mixture of conc. \[\ce{H2SO4}\] and conc. \[\ce{HNO3}\], the species which initiates the reaction is ______.
What is the role of \[\ce{HNO3}\] in the nitrating mixture used for nitration of benzene?
Assertion: N, N-Diethylbenzene sulphonamide is insoluble in alkali.
Reason: Sulphonyl group attached to nitrogen atom is strong electron-withdrawing group.
Give reasons for the following observation:
Aniline is acetylated before nitration reaction.
Give reasons for the following observation:
Aniline does not react with methyl chloride in the presence of anhydrous AlCl3 catalyst.
Assertion (A): Bromination of benzoic acid, gives m-bromobenzoic acid.
Reason (R): Carboxyl group increases the electron density at the meta position.
Aniline does not give Friedel-Crafts reaction. Give a reason.
