Aniline was acetylated and an acetanilide is formed. The acetanilide on nitration followed by alkaline hydrolysis gave:

1. o-Nitroacetanilide

2. o- and p-Nitroaniline

3. m-Nitroaniline

4. Acetanilide

Subtopic:  Amines - Preparation & Properties |
 74%
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In the chemical reactions,

HCl, 278 KNaNO2AHBF4B

the compounds 'A' and 'B' respectively are:

1. nitrobenzene and chlorobenzene

2. nitrobenzene and flurobenzene

3. phenol and benzene

4. benzene diazonium chloride and fluorobenzene

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 88%
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Which of the following reactions is appropriate for converting acetamide to methanamine ?

(1) Carbylamine reaction

(2) Hoffmann Bromamide reaction

(3) Stephens reaction

(4) Gabriels phthalimide synthesis

Subtopic:  Amines - Preparation & Properties | Identification of Primary, Secondary & Tertiary Amines |
 87%
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Which one of the following nitro-compounds does not rect with nitrous acid ?

Subtopic:  Urea & Nitro Compound |
 89%
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A given nitrogen-containing aromatic compound a reacts with Sn/HCl, followed by HNO2 to give an unsatable compound B.B, on treament with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is

 

Subtopic:  Urea & Nitro Compound |
 76%
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The correct statement regarding the basicity of arylamines is

(1) Arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalized by interaction with the aromatic ring p-electron system.

(2) Arylamines are generally more basic than alkylamines because of aryl group.

(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 p-electron system.

Subtopic:  Amines - Preparation & Properties |
 90%
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Which of the following will be most stable diazonium salt RN2+X- ?

(a) CH3N2+X-

(b) C6H5N2+X-

(c) CH3CH2N2+X-

(d) C6H5CH2N2+X-

 

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
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Which of the following is more basic than aniline ?

1. Diphenylamine

2. Triphenylamine

3. p-nitroaniline

4. Benzylamine

Subtopic:  Amines - Preparation & Properties |
 77%
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Which of the following compounds will not give Hoffmann bromamide reaction?

1.         

2.  

3.       

4.  

Subtopic:  Mechanism |
 60%
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Identify the major product (A) formed in the following reaction/\.

1.               2.  

3.        4.  

Subtopic:  Mechanism |
 53%
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