Identfy X in the sequence,

X HNO2C3H8O H2SO4K2Cr2O7C3H6O2 :

(a) CH3-NH-CH2-CH3

(b) CH3-CH2-CH2-NH2

(c) (CH3)3N

(d) none of the above

Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
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CH3CH2NH2 contains a basic NH2 group, but CH3CONH2 does not, because;

1. Acetamide is amphoteric in nature

2. In CH3CH2NH2 the electron pair on N-atom is delocalized by resonance

3. In CH3CH2NH2 there is no resonance, while in acetamide the lone pair of electron on N-atom is delocalized and therefore less available for protonation

4. None of the above

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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Tertiary nitro compounds cannot show tautomerism because:

(a) they are very stable

(b) isomerises to give sec. nitro compounds

(c) do not have labile H-atom

(d) they are highly eactive

Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
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Aniline and ethylamine resembles in:

1. Solubility

2. Action with HNO2

3. Action of Grignard reagent

4. Coupling reaction

Subtopic:  Cyanides & Isocyanides |
 56%
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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 A compound in which 2 of the hydrogens of NH3 have been replaced by alkyl or aryl groups

Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
 77%
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This reaction is an example of?

(a) Intermolecular C-N coupling
(b) Intramolecular C-N coupling
(c) Intermolecular N-N coupling
(d) Intramolecular N-N coupling

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 66%
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The hydrochlorides of amines form double salt with: 

(a) PtCl4

(b) AuCl3

(c) both (a) and (b)

(d) none of these

Subtopic:  Amines - Preparation & Properties |
 90%
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An amine is reacted with benzene sulphonyl chloride then a solid compound is formed which is insoluble in alkali, The amine is

1. CH3-CH2-NH2

2. CH3-NH-CH2-CH3

3. (CH3)3N

4. C6H5-NH2

Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
 76%
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The compound A and B respectively are

Subtopic:  Cyanides & Isocyanides |
 82%
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Reaction of R-C||O-NH2 with a mixture of Br2 and KOH gives R-NH2 as the main product. The intermediates involved in this reaction are: 

1. R-C||O-NHBr and R-N=C=O

2. RCN

3. R-C||O-NBr2

4. RNHBr

Subtopic:  Amines - Preparation & Properties |
 82%
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