Acetamide and ethyl amine can be distinguished by reacting with:            

1. Aq. HCl and heat

2. Aq. NaOH and heat

3. Acidified KMnO₄

4. Bromine water

The least basic aqueous solution among the following is:

1. $({\mathrm{CH}}_3{)}_2\mathrm{NH}$

2. ${\mathrm{CH}}_3{\mathrm{NH}}_2$

3. $({\mathrm{CH}}_3{)}_3\mathrm{N}$

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

Which one of the following on reduction with LiAlH₄ yields a secondary amine ?

[2007]

1. Methyl isocyanide

2. Acetamide

3. Methyl cyanide

4. Nitroethane

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

Tertiary nitro compounds cannot show tautomerism because:

1. they are very stable

2. isomerises to give sec. nitro compounds

3. do not have labile H-atom

4. they are highly eactive

A secondary amine is:

1. a compound with two -NH₂ groups

2. a compound with 2 carbon atoms and a -NH₂ group

3. a compound with a -NH₂ group on the carbon atom in number 2 position

4. a compound in which 2 of the hydrogens of NH₃ have been replaced by alkyl or aryl groups

An amine gives a solid compound that is insoluble in alkali with benzene sulphonyl chloride.

The amine is -

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{NH}}_2$

2. ${\mathrm{CH}}_3-\mathrm{NH}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

3. $({\mathrm{CH}}_3{)}_3\mathrm{N}$

4. ${\mathrm{C}}_6{\mathrm{H}}_5-{\mathrm{NH}}_2$

Ethylamine and diethylamine cannot be differentiated by:

1. Hinsberg test

2. Carbylamine test

3. Iodoform test

4. Both (1) and (2)

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

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