Mark the correct statement:

(1) Methyl amine is slightly acidic.

(2) Methyl amine is less basic than ammonia.

(3) Methyl amine is a stronger base than ammonia.

(4) Methyl amine forms salts with alkali.

Subtopic:  Amines - Preparation & Properties |
 89%
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Which one of the following amines will not react with HNO2 acid to give nitrogen?

(1) CH3NH2

(2) CH3CH2NH2

(3) CH3-C|CH3H-NH2

(4) 

 

Subtopic:  Amines - Preparation & Properties |
 92%
From NCERT
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What is decreasing order of basicity of p-, s-, t-ethyl amines and NH3 in aqueous medium ?

(1) NH3>C2H5NH2>(C2H5)2NH>(C2H5)3N

(2) (C2H5)3N>(C2H5)2NH>C2H5NH2>NH3

(3) (C2H5)2NH>C2H5NH2>NH3>(C2H5)3N

(4) (C2H5)2NH>(C2H5)3N>C2H5NH2>NH3

Subtopic:  Amines - Preparation & Properties |
 75%
From NCERT
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Urea on heating with ethanol gives:

1. Urethane

2. Urea alcohol

3. Ureides

4. None of the above

Subtopic:  Urea & Nitro Compound |
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Hints

Alkyl nitrite on reduction with Sn/HCl gives:

1. Alcohol

2. Hydroxylamine

3. Both (a) and (b)

4. Hydrazine

Subtopic:  Urea & Nitro Compound |
 54%
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Which of the following compounds is expected to be the most basic?

(1) Aniline

(2) Ethylamine

(3) Hydroxylamine

(4) Methylamine

Subtopic:  Amines - Preparation & Properties |
 69%
From NCERT
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The action of nitrous acid on a primary amine gives:

(1) nitroalkane

(2) alkyl nitrite

(3) alcohol

(4) secondary amine

Subtopic:  Amines - Preparation & Properties |
 80%
From NCERT
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The reaction,

CH3CN+4HNa/C2H5OHCH3CH2NH2 is called:

1. Hofmann's bromamide reaction

2. Mendius reaction

3. Sabatier reaction

4. None of the above

Subtopic:  Cyanides & Isocyanides |
 77%
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A colourless organic compound gave brisk effervescence with a mixture of NaNO2 and dil. HCl. It could be:

(1) glucose 

(2) oxalic acid

(3) urea 

(4)benzoic acid

Subtopic:  Amines - Preparation & Properties | Mechanism |
 65%
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Identify X in the sequence,

HNO2 C3H8H2SO4K2Cr2O7 C3H6O2

(1) CH3-NH-CH2-CH3

(2) CH3-CH2-CH2-NH2

(3) (CH3)3N

(4) none of the above

Subtopic:  Amines - Preparation & Properties |
 86%
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