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. 

Hinsberg's method to separate amines is based on the use of:

(1) benzene sulphonyl chloride

(2) benzene sulphonic acid

(3) ethyl oxalate

(4) acetyl chloride

An amine reacts with ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{SO}}_2\mathrm{Cl}$ and the product is soluble in alkali, amine is:

(1) $1°$

(2) $2°$

(3) $3°$

(4) all of these

 $({\mathrm{NH}}_4{)}_2{\mathrm{SO}}_4<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>\mathrm{KCNO}$ upon heating generates -

1. Nitrogen gas

2. Carbon dioxide

3. Biuret

4. Ammonium carbonate

Mark the correct statement:

(1) Methylamine is slightly acidic

(2) Methylamine is less basic than ammonia

(3) Methylamine ia a stronger base than ammonia

(4) Methylamine forms salts with alkalies

A colourless organic compound gave brisk effervescence with a mixture of NaNO₂ and dil.HCl. It could be:

(1) glucose

(2) oxalic acid

(3) urea

(4) benzoic acid

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