Select the correct option based on statements below:

Assertion (A): C6H5NH2 is a  1°  amine and can be prepared by Gabriel phthalimide synthesis.
Reason (R): C6H5NH2 is strongly basic in nature.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

Subtopic:  Amines - Preparation & Properties |
 68%
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Select the correct option based on statements below:

Assertion (A):  pKb of aniline is higher than ethylamine.
Reason (R): The lone pair of -NH2 group in aniline is involved in conjugation with a benzene ring.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Amines - Preparation & Properties |
 85%
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Select the correct option based on statements below:

Assertion (A): Aniline does not undergo the Friedel-Crafts reaction.
Reason (R): Diazonium salts of aromatic amines are more stable than those of aliphatic amines.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 70%
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Select the correct option based on statements below:

Assertion (A): is more basic than
Reason (R): Delocalization of a lone pair of electrons decreases the basic strength.
 
1. Both (A) and (R) are true and (R) is not the correct explanation of (A).
2. (A) is true but (R) is false
3. .Both (A) and (R) are true but (R) is the correct explanation of (A).
4. Both (A) and (R) are false.
Subtopic:  Amines - Preparation & Properties |
 55%
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The structure of the main product of the following reaction will be:
  \(\xrightarrow[]{Br_2,\ \text{heat or light}}\ \text{Product}\)

1.  2.
3. 4.
 

Subtopic:  Urea & Nitro Compound |
 60%
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Based on the statements given, which option is correct?

Assertion (A): Nitration of aniline at a low temperature gives 47% m-nitroaniline.
Reason (R): In acidic medium, NH2 group is converted into -N+H3 group which is m-directing.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Mechanism |
 84%
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Select the correct option based on statements below:

Assertion (A): Amines have a higher boiling point than the corresponding alcohols.
Reason (R): Alcohols possess intramolecular H-bonding.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Amines - Preparation & Properties |
 67%
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Select the correct option based on statements below:

Assertion (A): Secondary amines have higher boiling points than their respective tertiary isomers.
Reason (R): H-bonding is absent in tertiary amines.
 
1. Both (A) and (R) are true and (R) is not the correct explanation of (A).
2. Both (A) and (R) are true but (R) is the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Amines - Preparation & Properties |
 61%
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The following reaction is the best method to introduce F to benzene:


The structure of intermediate compound A is:

1.  2.   
3.   4.  
 

Subtopic:  Diazonium Salts: Preparation, Properties & Uses |
 83%
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Which amine gives the carbylamine test?

1.    2.   
3.    4.   
Subtopic:  Identification of Primary, Secondary & Tertiary Amines |
 84%
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NEET - 2020
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