Which of the following can not be formed by Gabriel phthalimide synthesis:-

1. 

2. $({\mathrm{CH}}_3{)}_2\mathrm{CH}-{\mathrm{NH}}_2$

3. 

4. C₂H₅NH₂

Which one of the following compound give carboxylic acid by hydrolysis ?

(1) 

(2) $\mathrm{Ph}-\mathrm{C}\equiv \mathrm{N}$

(3) 

(4) All of these

1.  

2. $\mathrm{Ph}-{\mathrm{CH}}_2-{\mathrm{NH}}_2$
 

3. 

4. $\mathrm{Ph}-\stackrel{\oplus }{\mathrm{N}}\equiv \stackrel{⊝}{\mathrm{C}}$

An amine gives a solid compound that is insoluble in alkali with benzene sulphonyl chloride.

The amine is -

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{NH}}_2$

2. ${\mathrm{CH}}_3-\mathrm{NH}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

3. $({\mathrm{CH}}_3{)}_3\mathrm{N}$

4. ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{NH}}_2$

The compound A and B respectively are:

1.		2.
3.		4.

The final compound 'B' in the below reaction is:

  ​​​​​​​

1.		2.
3.		4.

Alkyl isocyanide on hydrolysis produces: 

In the below-mentioned reaction, the main byproduct (A) formed is:

 

1.		2.
3.		4.	None of these

$\stackrel{{\left({\mathrm{NH}}_4\right)}_2\mathrm{S}}{\to }A\underset{0-5°C}{\overset{NaN{O}_2/HCl}{\to }}B\underset{∆}{\overset{C_2{H}_{5}OH}{\to }}\mathrm{C }$

Product (C) is  

1. Nitrobenzene

2. 1,3-Diethoxybenzenez

3. Ethoxybenzene

4. Benzene

Reaction of $\mathrm{R}-\stackrel{\mathrm{O}}{\stackrel{\left|\right|}{\mathrm{C}}}-{\mathrm{NH}}_2$ with a mixture of Br₂ and KOH gives R-NH₂ as the main product. The intermediates involved in this reaction are: 

1. $\mathrm{R}-\stackrel{\mathrm{O}}{\stackrel{\left|\right|}{\mathrm{C}}}-\mathrm{NHBr} \mathrm{and} \mathrm{R}-\mathrm{N}=\mathrm{C}=\mathrm{O}$

2. RCN

3. $\mathrm{R}-\stackrel{\mathrm{O}}{\stackrel{\left|\right|}{\mathrm{C}}}-{\mathrm{NBr}}_2$

4. RNHBr