Lassaigne's test for the detection of nitrogen will fail in the case of :

1. NH₂CONH₂

2. NH₂CONHNH₂.HCl

3. NH₂NH₂.HCl

4. C₆H₅NHNH₂.2HCl

Identify the product (A)  in the following reaction series,

CH₃CN $\stackrel{\mathrm{Na}/{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}}{\to }$(X) $\stackrel{{\mathrm{HNO}}_2}{\to }$(Y) $\stackrel{\left[\mathrm{O}\right]}{\to }$(Z) $\stackrel{\mathrm{Tollens}<mspace\; width="1em"></mspace>\mathrm{reagent}}{\to }$(A):

1. CH₃CHO

2. CH₃CONH₂

3. CH₃COOH

4. CH₃-CH₂-NHOH

The product C in the following sequence of reactions is:

     CH₃CN$\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }$A$\stackrel{{\mathrm{NH}}_3}{\to }$B$\stackrel{∆}{\to }$C is:

1. Methylamine

2. Ammonium acetate

3. Ethylamine

4. Acetamide

Gabriels phthalimide reaction is used to prepare:

(1) p-amine

(2) s-amine

(3) t-amine

(4) all of those

The amine may contain:

(1) $—N{H}_2<mspace\; width="1em"></mspace>gp.$

(2) $-\underset{|}{\mathrm{N}}\mathrm{H}<mspace\; width="1em"></mspace>\mathrm{gp}$ 

(3) $-\underset{\left|}{\overset{\right|}{\mathrm{N}}}$ gp

(4) all of these

Gas evolved during the reacton of sodium metal on ethyl-amine is:

(1) N₂

(2) C₂H₂

(3) H₂

(4) CO₂

Ethylamine undergoes oxidation in the presence of KMnO₄ followed by hydrolysis to form:

1. an acid

2. an alcohol

3. an aldehyde

4. a N-oxide

Which of the following reactions does not yield an amine?

1. $\mathrm{R}—\mathrm{X<mspace\; width="1em"></mspace>}+\hspace{0.17em}{\mathrm{NH}}_3$

2.  RCH=N-OH + [H] \(\xrightarrow[C_{2}H_{5}OH]{Na}\) 

3. $\mathrm{R}—\mathrm{CN}+{\mathrm{H}}_2\mathrm{O}\stackrel{{\mathrm{H}}^{+}}{\to }$

4. 

Hinsberg's method to separate amines is based on the use of:

(1) benzene sulphonyl chloride

(2) benzene sulphonic acid

(3) ethyl oxalate

(4) acetyl chloride

An amine reacts with ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{SO}}_2\mathrm{Cl}$ and the product is soluble in alkali, amine is:

(1) $1°$

(2) $2°$

(3) $3°$

(4) all of these