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Q. No.Given below are two statements:
Statement I:
Benzendiazonium chloride is a colourless crystalline solid. It is insoluble in water but reacts with water when warmed.
Statement II:
Benzendiazonium chloride on reacting with HCI in presence of copper powder gives chlorobenzene as the product. This is an example of Gatterman reaction.
In the light of the above statements, choose the correct answer from the option given below:
1. Both Statement I and Statement II is true.
2. Both Statement I and Statement II is false.
3. Statement I is true but Statement II is false.
4. Statement I is false but Statement II is true.
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
From NCERT
NEET - 2024
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Match List-I with List-II
Choose the correct answer from the options given below:
1. A-IV, B-III, C-II, D-I
2. A-IV, B-II, C-III, D-I
3. A-IV, B-II, C-I, D-III
4. A-II, B-III, C-I, D-IV
| List-I (Reagent) |
List-II (name of the reaction) |
||
| A. | Carbylamine test | I. | Phenol |
| B. | Bayer's test | II. | Acetone |
| C. | Iodoform test | III. | Ethylene |
| D. | Phthalein dye test | IV. | Aniline |
Choose the correct answer from the options given below:
1. A-IV, B-III, C-II, D-I
2. A-IV, B-II, C-III, D-I
3. A-IV, B-II, C-I, D-III
4. A-II, B-III, C-I, D-IV
Subtopic: Identification of Primary, Secondary & Tertiary Amines |
78%
From NCERT
NEET - 2024
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Match List-I with List-II
Choose the correct answer from the options given below:
1. A-II, B-III, C-I, D-IV
2. A-III, B-II, C-I, D-IV
3. A-II, B-I, C-III, D-IV
4. A-I, B-III, C-II, D-IV
| List-I (Amine) |
List-II \(\textbf{(pK}_{\beta} ~\textbf{value}) \) |
||
| A. | Benzenamine | I. | 3.38 |
| B. | Phenylmethanamine | II. | 9.38 |
| C. | Methenamine | III. | 4.70 |
| D. | N-Ethylethanamine | IV. | 3.0 |
1. A-II, B-III, C-I, D-IV
2. A-III, B-II, C-I, D-IV
3. A-II, B-I, C-III, D-IV
4. A-I, B-III, C-II, D-IV
Subtopic: Identification of Primary, Secondary & Tertiary Amines |
67%
From NCERT
NEET - 2024
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Identify the major product C formed in the following reaction sequence:
1. Butylamine
2. Butanamide
3. \(\alpha-\) Bromobutanoic acid
4. Propylamine
1. Butylamine
2. Butanamide
3. \(\alpha-\) Bromobutanoic acid
4. Propylamine
Subtopic: Amines - Preparation & Properties |
61%
From NCERT
NEET - 2024
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Given below are two statements:
| Statement I: | Aniline does not undergo Friedel-Crafts alkylation reaction. |
| Statement II: | Aniline cannot be prepared through Gabriel synthesis. |
| 1. | Both Statement I and Statement II are incorrect. |
| 2. | Statement I is correct and Statement II is incorrect. |
| 3. | Statement I is incorrect and Statement II is correct. |
| 4. | Both Statement I and Statement II are correct. |
Subtopic: Amines - Preparation & Properties | Identification of Primary, Secondary & Tertiary Amines |
66%
From NCERT
NEET - 2024
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Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.
1. NaNO2/HCl; Sn/HCl; Br2; H2O/H3PO2
2. Sn/HCl ; NaNO2/HCl; Br2;H2O/H3PO2
3. Br2;Sn/HCl;NaNO2/HCl;H2O/H3PO2
4. Sn/HCl;Br2;NaNO2/HCl;H2O/H3PO2
1. NaNO2/HCl; Sn/HCl; Br2; H2O/H3PO2
2. Sn/HCl ; NaNO2/HCl; Br2;H2O/H3PO2
3. Br2;Sn/HCl;NaNO2/HCl;H2O/H3PO2
4. Sn/HCl;Br2;NaNO2/HCl;H2O/H3PO2
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
From NCERT
NEET - 2023
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Subtopic: Amines - Preparation & Properties |
From NCERT
NEET - 2023
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Subtopic: Diazonium Salts: Preparation, Properties & Uses |
56%
From NCERT
NEET - 2023
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Among the given reactions, which one does not result in the formation of a primary amine as the product?
| 1. |  |
| 2. |  |
| 3. |  |
| 4. |  |
Subtopic: Amines - Preparation & Properties |
72%
From NCERT
NEET - 2023
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Match column I (Reaction) with column II (Product formed) and mark the appropriate choice:
| Column - I (Reaction) |
Column - II (Product formed) |
||
| (a) | Gabriel synthesis | (i) | Benzaldehyde |
| (b) | Kolbe synthesis | (ii) | Ethers |
| (c) | Williamson synthesis | (iii) | Primary amines |
| (d) | Etard reaction | (iv) | Salicylic acid |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (ii) | (iv) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (ii) | (i) |
Subtopic: Amines - Preparation & Properties |
80%
From NCERT
NEET - 2022
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