In which of the following reactions cyanide will be obtained as a major product?

1.  $O$
$\left|\right|$
$Ph‐C‐C{H}_3\underset{\left(ii\right) H_3{O}^{+}}{\overset{\left(i\right) LiAl{H}_4}{\to }}$

 $O$
$\left|\right|$
$2. Ph‐C‐N{H}_2\underset{B{r}_2}{\overset{NaOH}{\to }}$
$O$
$\left|\right|$
$3. Ph‐C‐N{H}_2\underset{B{r}_2}{\overset{P_4{O}_{10}}{\to }}$
$O$
$\left|\right|$
$4. Ph‐C‐O‐H\stackrel{SOC{l}_2}{\to } \stackrel{N{H}_3}{\to }$

 

Product (A) is:

1.   

2.  

3.   

4.  

 $\underset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\overset{{\mathrm{NaNO}}_2}{\to }} \left(\mathrm{A}\right); \mathrm{Product} \mathrm{of} \mathrm{this} \mathrm{reaction} \mathrm{is}:$

1.  

2. 

3.  

4.  

 $\stackrel{{\mathrm{HNO}}_2}{\to }$(A) + + CH₂ = CH-CH₂-CH₂-OH   

A will be:

(a) $\begin{array}{ccccc}{\mathrm{Ch}}_2 = \mathrm{CH}& -& \underset{\mathrm{OH}}{\underset{|}{\mathrm{CH}}}& -& {\mathrm{CH}}_3\end{array}$

(b) 

(c) 

(d) 

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

The amine may contain:

(1) $—N{H}_2 gp.$

(2) $-\underset{|}{\mathrm{N}}\mathrm{H} \mathrm{gp}$ 

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

(4) all of these

Which of the following reactions does not yield an amine?

1. $\mathrm{R}—\mathrm{X }+ {\mathrm{NH}}_3$

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.