Amines

Long Answer Type

Advertisement
Zigya App

How is aniline prepared commercially? Describe carbylamines test for primary amines.

Aniline is prepared commercially by the reduction of nitrobenzene using iron and hydrochloric acid.



Because of the presence of hydrochloric acid in the reaction mixture actually aniline hydrochloride (C6H5NH3+Cl-) is obtained. This on treatment with aqueous sodium carbonate gives aniline.



Carbylamine test for primary amines:
Primary amines, both aliphatic and aromatic, give carbylamines having a pungent smell, when heated with chloroform and alcoholic potash.
333 Views
  • Switch
    • Advertisement

    Short Answer Type

    Show how p-amino azobenzene can be prepared from aniline?

    272 Views
    Answer

    How is ethylamine prepared from acetonitrile? Compare its basic character with that of ammonia.

    444 Views
    Answer
    Write IUPAC names of following and classify them into primary, secondary, tertiary amines:
    (CH3)2CHNH2
    336 Views
    Answer

    Long Answer Type

    Identify the substances A and B in each of the following sequences of reactions:



    144 Views
    Answer
    Advertisement

    Short Answer Type

    ROH is a stronger acid than RNH2.

    265 Views
    Answer

    Explain the following reactions by taking one suitable example in each case:
    Hoffmann's bromamide reaction.

    199 Views
    Answer

    Identify the substances A and B in each of the following sequences of reactions:
    CH3CONH2 is a weaker base than CH3CH2NH2

    159 Views
    Answer

    Explain the following reactions by taking one suitable example in each case:
    Gattermann’s reaction.

    250 Views
    Answer
    Advertisement
    <

    Long Answer Type

    Describe the method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.

    235 Views
    Answer
    Advertisement