Which of the following reagents reacts with ethylamine to liberate a colourless, odourless,
and non-combustible gas?

1. NaOH

2. CH₃COCl

3. NaNO₂ + HCl

4. H₂SO₄

Carbonyl chloride reacts with ammonia to form:

1.  ${\mathrm{CO}}_2$

2.  ${\mathrm{NH}}_2{\mathrm{CONH}}_2$

3.  ${\mathrm{CH}}_3{\mathrm{COONH}}_4$

4.  ${\mathrm{CH}}_3{\mathrm{CONH}}_2$

Which of the following is hydrolyzed to give secondary amine?

1.  Alkyl cyanide

2.  $HCO{N}_{{\backslash }_{C{H}_3}}^{{/}^{C{H}_3}}$

3.  Nitroparaffins

4.  Acidamide

Aniline undergoes acetylation when heated with glacial acetic acid in the presence of
an anhydrous catalyst. Identify the major organic product formed in this reaction.

1. Acetamide

2. Acetanilide

3. Phenylacetamide

4. Chlorobenzene

Carcinogens are the products of the reaction between:

1.  ${\mathrm{R}}_2\mathrm{NH}+{\mathrm{HNO}}_2$

2.  ${\mathrm{R}}_3\mathrm{N}+{\mathrm{HNO}}_2$

3.  ${\mathrm{RNH}}_2+{\mathrm{HNO}}_2$

4.  none of these 

Hofmann's rearrangement During the conversion of an amide to amine involves ..... rearrangement.

1.  Intermolecular

2.  Intramolecular

3.  Both (1) and (2)

4.  None of the above 

Aniline is a weaker base than ethylamine because:

1. lone pair of electrons of N-atom is not freely available for coordination due to resonance than in ethylamine.

2. Its b.p. is higher than that of ethylamine.

3. It does not produce a sufficient concentration of ${\mathrm{OH}}^{-}$ ions in solution.

4. It is insoluble in water while ethylamine is soluble in water.

Diethyl carbonate on heating with ammonia gives:

1.  ${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2$

2.  ${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_{3}N$

3.  ${\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_{2}NH$

4.  Urea

Which of the following reagents can show the acidic nature of nitroalkanes?

1.  ${\mathrm{Na}}_2{\mathrm{CO}}_3$

3.  $\mathrm{NaOH}$

3.  Alcohol

4.  liquid ${\mathrm{NH}}_3$
 

Primary, secondary, and tertiary amines may be separated by using:

1.  Ethanoyl chloride 

2.  Diethyl oxalate

3.  Thionyl chloride

4.  None of the above