Phenyl isocyanide is prepared from aniline by

• Carbylamine reaction

• Rosenmund's reaction

• Koble's reaction

• Reimer-Tiemann reaction

92.

Gabriel's phthalimide synthesis can be used to prepare

• ethanamine

• N-methylmethanamine

• benzene amine

• N, N-dimethylmethanamine

Select the compound which on treatment with nitrous acid liberates nitrogen.

• Nitroethane

• Triethylamine

• Diethylamine

• Ethylamine

The compound that neither forms semicarbazone nor oxime is

• HCHO

• CH₃COCH₃

• CH₃CHO

• CH₃CH₂CH₂NH₂

Positive carbylamine test is shown by

• N, N-dimethylaniline

• triethylamine

• N-methylaniline

• p-methylbenzylamine

Ethanoic acid on heating with ammonia forms compound A which on treatment with bromine and sodium hydroxide gives compound B. Compound B on treatment with NaNO₃/dil.HCl gives compound C. The compounds A, B and C respectively are

• ethanamide, methanamine, methanol

• propanamide, ethanamine, ethanol

• N-ethylpropanamide, methaneisonitrile, methanamine

• ethanamine, bromoethane, ethanediazoniumchloride

n-butylamine (l),  diethylamine (II) and N,  N-dimethylethylamine (III)  have the same molar mass.  The increasing order of their boiling point is

• III < II < I

• I < II < III

• II < III < I

• II < I < III

Choose the incorrect statement.

• Primary amines show intermolecular hydrogen bonds

• Tert-butylamine is a primary amine

• Tertiary amines do not show intermolecular hydrogen bonds

• Isopropylamine is a secondary amine

Amine that cannot be prepared by Gabriel phthalimide synthesis is

• aniline

• benzylamine

• methylamine

• iso-butylamine

Which of the following is the least basic amine?

• Ethylamine

• Diethylamine

• Aniline

• Benzylamine