Which of the following statements about primary amines is false ?

[2010]

1. Alkyl amines are stronger bases than aryl amines

2. Alkyl amines react with nitrous acid to produce alcohols

3. Aryl amines react with nitrous acid to produce phenols

4. Alkyl amines are stronger bases than ammonia

Subtopic:  Amines - Preparation & Properties |
 73%
From NCERT
AIPMT - 2010
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

When NaNO2 and dilute HCl were added to an amine at 0°c, a colourless gas was evolved and an ionic compound is formed. The amine is:

1. any primary amine

2. an aromatic primary amine

3. any amine

4. none of the above

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 63%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The compound obtained by heating a mixture of primary amine and chloroform with ethanolic potassium hydroxide (KOH) is

[1997]

1. An alkyl isocyanide

2. An alkyl halide

3. An amide

4. An amide and nitro compound

Subtopic:  Cyanides & Isocyanides |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Identify 'Z' in the change;

C6H5NH2280KNaNO2/HClXCuBr/HBrZ:

1. 

2. 

3. 

4. 

Subtopic:  Mechanism |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Among the following, the strongest base is:

1. C6H5NH2

2. p-NO2-C6H4NH2

3. m-NO2-C2H4NH2

4. C2H5CH2NH2

Subtopic:  Amines - Preparation & Properties |
 79%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A nitrogenous substance X is treated with HNO2 and the product so formed is further treated with NaOH solution, which produces blue colouration. X can be:

1. CH3CH2NH2

2. CH3CH2NO2

3. (CH3)2C(N=O)(NO2)

4. (CH3)2CHNO2

Subtopic:  Urea & Nitro Compound |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Alkanamide that gives 1-phenylethylamine on Hoffmann's reaction is:

1. 2-Phenylpropanamide

2. 3-Phenylpropanamide

3. 2-Phenylethanamide

4. N-Phenylethanamide

Subtopic:  Amines - Preparation & Properties |
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The IUPAC name of the given comound is -

  

1. 1-Methyl-aminopropane

2. Butan-2-amine

3. 2-Methyl-2-aminopropane

4. None of the above

Subtopic:  Amines - Preparation & Properties |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The correct order of increasing reactivity of C-X bond towards nucleophile in the following compound is

[2010]

1. I<II<IV<III

2. II<III<I<IV

3. IV<III<I<II

4. III<II<I<IV

Subtopic:  Amines - Preparation & Properties |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of sodium nitrite in presence of dilute hydrochloric acid. The compound so formed is converted into a tertafluoroborate which is subsequently heated. The final product is    

1. 1,3,5-tribromobenzene

2. p-bromofluorobenzene

3. p-bromoaniline

4. 2,4,6-tribromofluorobenzene

Subtopic:  Amines - Preparation & Properties |
 74%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints