Urea reacts with hydrazine to form:

1. Nitrogen

2. Phenyl hydrazine

3. Semicarbazide

4. Urethane 

The main product in the reaction,

 $\mathrm{HCONHR}\underset{\mathrm{Pyridine}}{\overset{{\mathrm{POCl}}_3}{\to }}<mspace\; width="1em"></mspace>\mathrm{is}:$

1.  RCN

2.  RNC

3.  RCNO

4.  RNCO

$\mathrm{R}-\mathrm{N}\underrightarrow{=}\mathrm{C}+\mathrm{HgO}\to \mathrm{A}+\mathrm{Hg}{}_2\mathrm{O}$ ; What is A?

1.  ${\mathrm{RNH}}_2$

2.  ${\mathrm{RCONH}}_2$

3.  $\mathrm{R}-\mathrm{NCO}$

4.  $\mathrm{RCOOH}$

Which of the following can be used to distinguish acetamide and urea?

1.  Fehling's solution

2.  Biuret test

3.  Hofmann's reaction

4.  NaOH solution

A colourless, odourless and non-combustible gas is liberated when ethylamine reacts with:

1.  NaOH

2.  ${\mathrm{CH}}_3\mathrm{COCl}$

3.  ${\mathrm{NaNO}}_2+\mathrm{HCl}$

4.  ${\mathrm{H}}_2{\mathrm{SO}}_4$ 

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

When aniline is heated with glacial acetic acid in the presence of anhydrous ${\mathrm{ZnCl}}_2$, the product is:

1. Acetamide

2. Acetanilide

3. Phenyl acetamide

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