Aniline when diazotised in cold and then treated with dimethylaniline, gives a coloured product. Its structure would be :                                                                                 

1.

2. 

3. 

4. 

What is the end product in the following sequences of operations?

Acetamide$\stackrel{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }\mathrm{A}\stackrel{4\mathrm{H}}{\to }\mathrm{B}$

1. CH₃NH₂                              

2. C₂H₅NH₂

3. CH₃CN                                   

4.  CH₃COONH₄

Name the end product in the following series of reactions,

CH₃COOH $\stackrel{{\mathrm{NH}}_3}{\to }$A$\stackrel{∆}{\to }$B$\stackrel{{\mathrm{P}}_2{\mathrm{O}}_5}{\to }$C:

1. CH₄ 

2. CH₃OH

3. acetonitrile 

4. ammonium acetate

The type of isomerism shown by C₆H₅CN and C₆H₅NC is:

1. Position

2. Functional

3. enantiomer

4. Tautomerism

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

1. alcohol

2. nitrite

3. diazonium salt

4. benzene

In the reaction,

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

[1999]

1. Acetone

2. Ethanamine

3. Acetaldehyde

4. Dimethyl amine

X and Y in the given reaction are:

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

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

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

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

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-C₂H₄NH₂

4. C₂H5CH₂NH₂

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 those