Which of the following reactions is appropriate for converting acetamide to methanamine?

1. Hoffmann hypobromamide reaction

2. Stephens reaction

3. Gabriels phthalimide synthesis

4. Carbylamine reaction

Subtopic:  Amines - Preparation & Properties | Identification of Primary, Secondary & Tertiary Amines |
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Nitration of aniline in strong acidic medium also gives m-nitroaniline because:

1. In spite of substituents nitro group always goes to only m-position
2. In electrophilic substitution reactions amino group is meta directive
3. In absence of substituents nitro group always goes to only m-position
4. In acidic (strong) medium aniline is present as anilinium ion
Subtopic:  Amines - Preparation & Properties |
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A nitro-compound among the following that does not react with nitrous acid is:

1.  2.
3.   4.  
 

Subtopic:  Urea & Nitro Compound |
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A nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HNO2 to give an unstable compound B. On treatment with phenol, B forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is:

1.  2.
3. 4.
 

Subtopic:  Urea & Nitro Compound |
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The correct statement regarding the basicity of arylamines is:

1. Arylamines are generally more basic than alkylamines because the lone-pair electrons of nitrogen are not delocalized by interaction with the aromatic ring π-electron system.
2. Arylamines are generally more basic than alkylamines because of the aryl group +I effect.
3. Arylamines are generally more basic than alkylamines because the nitrogen atom in arylamines is sp-hybridized.
4. Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π-electron system.
Subtopic:  Amines - Preparation & Properties |
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The number of structural isomers possible from the molecular formula C3H9N is

1. 4

2. 5

3. 2

4. 3

Subtopic:  Amines - Preparation & Properties |
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Aniline cannot be prepared by:

1. Hydrolysis of phenyl isocyanide with an acidic solution
2. Degradation of benzamide with bromine in alkaline solution
3. Reduction of nitrobenzene with H2/Pd in ethanol
4. Treatment of Potassium salt of phthalimide with chlorobenzene followed by hydrolysis in an aqueous NaOH solution
Subtopic:  Amines - Preparation & Properties |
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What is the name of the following reaction?

1. Friedel-Crafts reaction

2. Perkins reaction

3. Acetylation reaction

4. Schotten-Baumann reaction

Subtopic:  Amines - Preparation & Properties |
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The product (A) in the below mentioned reaction is:

1.  2.
3. 4.
 

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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Among the following, which diazonium salt is the most stable?

1. \(CH_{3}N_{2}^{+}X^{-}\)

2. \(C_{6}H_{5}N_{2}^{+}X^{-}\)

3. \(CH_{3}CH_{2}N_{2}^{+}X^{-}\)

4. \(C_{6}H_{5}CH_{2}N_{2}^{+}X^{-}\)

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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