Which amine yields N-nitroso amine after treatment with nitrous acid (NaNO₂, HCl) ?

1.		2.
3.		4.

The product formed in the below mentioned reaction is:

1.		2.
3.		4.

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)