Primary, Secondary and tertiary amines may be separated by using:

1. ethanoyl chlorode

2. diethyl oxalate

3. thionyl chlorode

4. none of these

   and are ........... isomers.
   $\mathrm {R~~~N~~~~O}$

1.Chain

2. functional

3. position

4. all of these

Primary nitroalkanes on hydrolysis give:

1. RCOOH + NH₂OH

2. RCOOH

3. NH₂OH

4. RCOR

The numbers of primary amines posible for the formula C₄H₁₁N is -

1. 1

2. 2

3. 3

4. 4

The type of isomerism shown by C₆H₅CN and C₆H₅NC is:

1. Position

2. Functional

3. enantiomer

4. Tautomerism

The product D in the following sequence of reactoins is, 

${\mathrm{CH}}_3\mathrm{COOH} \stackrel{{\mathrm{NH}}_3}{\to } A \stackrel{\mathrm{Heat}}{\to } B \stackrel{{\mathrm{P}}_2{\mathrm{O}}_5}{\to } C \stackrel{\mathrm{Na} + {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}}{\to } D$ :

1. Ester

2. Amine

3. Acid

4. Alcohol

Aniline in a set of reactions yielded a product

[2005]

The structure of the product D would be

1. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2{\mathrm{NH}}_2$

2.  ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NHCH}}_2{\mathrm{CH}}_3$

3. ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{NHOH}$

4. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{OH}$

What is the decreasing order of the basicity of $1°, 2° \mathrm{and} 3°$ ethyl amines (in aquous) and ammonia ?

1. ${\mathrm{NH}}_3>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2>({\mathrm{C}}_2{\mathrm{H}}_5{)}_2\mathrm{NH}>({\mathrm{C}}_2{\mathrm{H}}_5{)}_3\mathrm{N}$

2. $({\mathrm{C}}_2{\mathrm{H}}_5{)}_3\mathrm{N}>({\mathrm{C}}_2{\mathrm{H}}_5{)}_2\mathrm{NH}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2>{\mathrm{NH}}_3$

3. $({\mathrm{C}}_2{\mathrm{H}}_5{)}_2\mathrm{NH}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2>({\mathrm{C}}_2{\mathrm{H}}_5{)}_3\mathrm{N}>{\mathrm{NH}}_3$

4. $({\mathrm{C}}_2{\mathrm{H}}_5{)}_2\mathrm{NH}>({\mathrm{C}}_2{\mathrm{H}}_5{)}_3\mathrm{N}>{\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2>{\mathrm{NH}}_3$

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

1. alcohol

2. nitrite

3. diazonium salt

4. benzene