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Q. No.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 |
70%
Level 2: 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, group is converted into 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 |
85%
Level 1: 80%+
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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 |
72%
Level 2: 60%+
Hints
Select the correct option based on statements below:
| Assertion (A): | of aniline is higher than ethylamine. |
| Reason (R): | The lone pair of 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%
Level 1: 80%+
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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 |
74%
Level 2: 60%+
Hints
Select the correct option based on the 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 |
60%
Level 2: 60%+
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Links
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 but (R) is not the correct explanation of (A). |
| 2. | Both (A) and (R) are True and (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 |
67%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | Lower aliphatic amines are soluble in water. |
| Reason (R): | Lower aliphatic amines can form intermolecular H-bonding with H2O . |
| 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 |
88%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.
Subtopic: Identification of Primary, Secondary & Tertiary Amines |
87%
Level 1: 80%+
NEET - 2020
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Aniline when diazotised in cold and then treated with dimethylaniline, gives a coloured product. It's structure would be :
1. 
2. 
3. 
4. 
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
76%
Level 2: 60%+
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