Deamination (or) diazotization of n-Bu-NH2 with NaNO₂/HCl gives ......... isomeric butene.

(1) 2

(2) 3

(3) 4

(4) 5

 $\underset{{\mathrm{H}}_2\mathrm{O}}{\overset{{\mathrm{Br}}_2}{\to }}$ (A) $\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{PO}}_2}{\overset{\left(\mathrm{i}\right) {\mathrm{NaNO}}_2/\mathrm{HCl}}{\to }}$ (B), Product (B) in this reaction is:

1. 

2. 

3. 

4. 

Product (B) of this reaction is:-
1. 

2. 

3. 

4.  

This reaction is example of ?
(1) Intermolecular C-N coupling

(2) Intramolecular C-N coupling

(3) Intermolecular N-N coupling

(4) Intramolecular N-N coupling

Product (C) in the above reaction is:

1. 

2.

3. 

4.

Product (B) of this reaction is:

1.

2.

3.

4. None of the above

Above compounds (P) & (Q) can be differentiated by:

(1) amm. AgNO₃

(2) NaOH

(3) FeCl₃

(4) Both (a) & (b)

Ethylamine and diethylamine cannot be differentiated by:

1. Hinsberg test

2. Carbylamine test

3. Iodoform test

4. Both (1) and (2)

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) $\stackrel{\mathrm{Tollens} \mathrm{reagent}}{\to }$(A):

1. CH₃CHO

2. CH₃CONH₂

3. CH₃COOH

4. CH₃-CH₂-NHOH