Hofmann bromamide degradation reaction is shown by:

1 PhNH2 2. PhCONH2
3. PhNO2 4. PhCH2NH2

Subtopic:  Amines - Preparation & Properties |
 90%
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The correct increasing order of basic strength for the following compounds is:

   (I)       (II)       (III)

1. II < III < I

2. III < I < II

3. III < II < I

4. II < I < III

Subtopic:  Amines - Preparation & Properties |
 86%
From NCERT
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Methylamine reacts with HNO2 to form-
1. CH3-O-N=O
2. CH3-O-CH3
3. CH3-OH
4. CH3CHO

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 74%
From NCERT
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The gas evolved when methylamine reacts with nitrous acid is .............

1. NH3
2. N2
3. H2
4. C2H6

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 86%
From NCERT
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In nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species that initiates the reaction is :

1. NO2
2. NO+
3. NO2+
4. NO2-

Subtopic:  Urea & Nitro Compound |
 78%
From NCERT
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Reduction of aromatic nitro compounds using Fe and HCl gives

1.  aromatic oxime

2.  aromatic hydrocarbon

3.  Aniline

4.  aromatic amide

Subtopic:  Amines - Preparation & Properties |
 90%
From NCERT
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The most reactive amine towards dilute hydrochloric acid is .........

1. CH3-NH2

2. 

3. 

4. 

Subtopic:  Amines - Preparation & Properties |
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Acid anhydrides on reaction with primary amines give

1.  amide

2.  imide

3.  secondary amine

4.  imine

Subtopic:  Mechanism |
 67%
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The following reaction is named as:

\(\mathrm{Ar}^{+} \mathrm{Cl}_2 \mathrm{Cl}^{-} \xrightarrow{\mathrm{Cu}, \quad \mathrm{HCl}} \mathrm{ArCl}+\mathrm{N}_2+\mathrm{CuCl}\)
 

1. Sandmeyer reaction
2. Gattermann reaction
3. Claisen reaction
4. Carbylamine reaction

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 74%
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Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride?

1.  Aniline

2.  Phenol

3.  Anisole

4.  Nitrobenzene

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 65%
From NCERT
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