Aliphatic amines are soluble in water because:

(1) they are basic

(2) they are amino compounds

(3) they are lighter than water

(4) of formation of hydrogen bonds with water

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

Which of the following reagents will convert nitromethane into methylamine ?

1. Zn/HCl

2. Zn/NaOH

3. Zn/C₂H₅OH

4. Ni/H₂

Nitrobenze on reduction with Al-Hg and water gives:

(1) azobenze

(2) aniline

(3) azoxy benzene

(4) phenylhydroxylamine

The reduction of CH₃CN to CH₃CH₂NH₂ is called:

1. Rosenmund's reduction

2. Clemmensen's reduction

3. Mendius reduction

4. Hofmann's reduction

Aniline and ethylamine resembles in:

(1) solubility

(2) action with HNO₂

(3) action of Grignard reagent

(4) coupling reaction

Mendius method of preparation of amines consists of: 

(1) catalytic reduction of alkyl cyanides

(2) reduction of amide with LiAlH₄ 

(3) reduction of nitroparaffin with Sn + HCl

(4) reduction of oximes with Na + C₂H₅OH

ln the reaction, 

The product is: 

1. 

2. 

3. 

4. 

The correct order of basicities of the following compounds is:

$\underset{1}{{\mathrm{CH}}_3-\underset{{\mathrm{NH}}_2}{\overset{\mathrm{NH}}{\underset{|}{\overset{\left|\right|}{\mathrm{C}}}}}}, \underset{2}{C{H}_{3}C{H}_{2}N{H}_2} , \underset{3}{{\left(C{H}_3\right)}_{2}NH} , \underset{4}{ C{H}_3-\stackrel{O}{\stackrel{\left|\right|}{C}}-N{H}_2}$

1. 2 > 1 > 3 > 4

2. 1> 3 > 2 > 4

3. 3 > 1 > 2 > 4

4. 1 > 2 > 3 > 4

A primary amine heated with CS₂ in presence of excess of HgCl₂ gives isothiocyanate. The reaction is called:

(1) Hofmann's bromamide reaction

(2) Hofmann's mustard oil reaction

(3) Perkin's condensation

(4) Hofmann's elimination