An aromatic primary amine with cold nitrous acid leads to the formation of:

(a) alcohol

(b) nitrite

(c) diazonium salt

(d) benzene

Product P in the above reaction is 

[2002]

In the reaction sequence:

${\mathrm{CH}}_3\mathrm{CN}+2\mathrm{H}\underset{{\mathrm{SnCl}}_2}{\overset{\mathrm{HCl}}{\to }}X<mspace\; width="1em"></mspace>\stackrel{\mathrm{Boiling}<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}}{\to }<mspace\; width="1em"></mspace>Y,$
What is the compound Y?

1. Acetone

2. Ethanamine

3. Acetaldehyde

4. Dimethyl amine

X and Y in the given reaction are:

(a) ${\mathrm{CH}}_3\mathrm{COOH}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>({\mathrm{CH}}_3{)}_2\mathrm{NH}$

(b) ${\mathrm{CH}}_3{\mathrm{CONH}}_2<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{CH}}_3\mathrm{OH}$

(c) ${\mathrm{CH}}_3\mathrm{CHO}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>({\mathrm{CH}}_3{)}_2\mathrm{NH}$

(d) ${\mathrm{CH}}_3{\mathrm{COCH}}_3<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{CH}}_3{\mathrm{NH}}_2$

Which of the following statements about primary amines is false ?

[2010]

(1) Alkyl amines are stronger bases than aryl amines

(2) Alkyl amines react with nitrous acid to produce alcohols

(3) Aryl amines react with nitrous acid to produce phenols

(4) Alkyl amines are stronger bases than ammonia

Among the following, the strongest base is:

1. C₆H₅NH₂

2. p-NO₂-C₆H₄NH₂

3. m-NO₂-$C_6$H₄NH₂

4. CH₃CH₂NH₂

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

(a) $1°$

(b) $2°$

(c) $3°$

(d) all of those

Among following reactions, the reaction does not yield an amine is-

1. 

2. 

3. 

4. 

The end product in the following sequence of reactions is

${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2\stackrel{{\mathrm{HNO}}_2}{\to }A<mspace\; width="1em"></mspace>\stackrel{{\mathrm{PCl}}_5}{\to }B\stackrel{{\mathrm{NH}}_3}{\to }C?$
$$

1. Ethyl cyanide

2. Ethylamine

3. Methylamine

4. Acetamide

Identfy X in the sequence,

$X<mspace\; width="1em"></mspace>\stackrel{{\mathrm{HNO}}_2}{\to }{\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}<mspace\; width="1em"></mspace>\underset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\overset{{\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7}{\to }}{\mathrm{C}}_3{\mathrm{H}}_6{\mathrm{O}}_2$ :

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

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

(c) $({\mathrm{CH}}_3{)}_3\mathrm{N}$

(d) none of the above