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

Which nitro compound will show tautomerism ?

(1) ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NO}}_2$

(2) $({\mathrm{CH}}_3{)}_3{\mathrm{CNO}}_2$

(3) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NO}}_2$

(4) o-nitrotoluene

The reduction of CH₃CN to CH₃CH₂NH₂ is called:

1. Rosenmund's reduction

2. Clemmensen's reduction

3. Mendius reduction

4. Hofmann's reduction

The product [A] formed in the reaction;

$2{\mathrm{C}}_5{\mathrm{H}}_5-\mathrm{CN}\underset{{\mathrm{Et}}_2\mathrm{O}}{\overset{\mathrm{Na}}{\to }}\left[A\right]<mspace\; width="1em"></mspace>\mathrm{is}:$

1. 

2. 

3. 

4. 

ln the reaction, 

The product is: 

1. 

2. 

3. 

4. 

In the compound given below,

the correct order of acidic nature of the positions (X), (Y) and (Z) is: 

(1) Z>X>Y

(2) X>Y>Z

(3) X>Z>Y

(4) Y>X>Z

The product obtained on nitration followed by alkaline hydrolysis of acetylated aniline is:

1. o-Nitroacetanilide

2. o- and p-Nitroaniline

3. m-Nitroaniline

4. Acetanilide

In the chemical reactions,

the compounds 'A' and 'B', respectively, are:

1. Nitrobenzene and chlorobenzene

2. Nitrobenzene and fluorobenzene

3. Phenol and benzene

4. Benzene diazonium chloride and fluorobenzene

A reaction that can convert acetamide to methanamine is:

1. Carbylamine reaction

2. Hoffmann bromamide reaction

3. Stephens reaction

4. Gabriels phthalimide synthesis

Which one of the following nitro-compounds does not react with nitrous acid?