Q. No.A compound P reacts with ammonia and, upon heating, forms compound Q. Compound Q, when treated with KOH and bromine (Br₂), undergoes a reaction to produce compound R, which has the molecular formula C₆H₇N.
Identify the correct sequence of compounds P, Q, and R, respectively:
1. Benzoic acid, benzamide, aniline2. Benzoic acid, ammonium benzoate, benzene
3. Ammonium benzoate, benzamide, benzene
4. Benzoic acid, aniline, benzene
Subtopic: Amines - Preparation & Properties |
Level 4: Below 35%
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| Statement I | Grignard reagent (R–MgX) reacts with CO₂ followed by acidification to form a carboxylic acid (R–COOH). This on heating with NH₃ forms an amide (R–CONH₂), which on treatment with NaOCl gives a primary amine (R–NH₂). The amine on reaction with CHCl₃/NaOH forms an isocyanide (R-NC). |
| Statement II | Isocyanide (R-NC) on hydrolysis gives Carboxylic acid (RCOOH). |
Choose the correct option:
| 1. | Statement-I and Statement-II both are correct |
| 2. | Statement-I is incorrect Statement-II is correct |
| 3. | Statement-I is correct Statement-II is incorrect |
| 4. | Statement-I and Statement-II both incorrect |
Subtopic: Amines - Preparation & Properties | Cyanides & Isocyanides | Mechanism |
72%
Level 2: 60%+
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Aniline (9.3 gm) on reaction with acetic anhydride forms 'X' (11 gm), find the percentage yield of the reaction:
1. 80
2. 90
3. 81.48
4. 93.2
1. 80
2. 90
3. 81.48
4. 93.2
Subtopic: Amines - Preparation & Properties | Identification of Primary, Secondary & Tertiary Amines |
69%
Level 2: 60%+
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Subtopic: Amines - Preparation & Properties | Mechanism |
55%
Level 3: 35%-60%
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Find the mass of product (in g) obtained by benzoylation of 5.8 gm aniline, if reaction yield is 82%:
1. 5.65
2. 10.04
3. 15.61
4. 22.02
1. 5.65
2. 10.04
3. 15.61
4. 22.02
Subtopic: Amines - Preparation & Properties |
66%
Level 2: 60%+
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Given below are two statements:
1. Statement-I and Statement-II both are correct
2. Statement-I is incorrect, Statement-II is correct
3. Statement-I is correct, Statement-II is incorrect
4. Statement-I and Statement-II both are incorrect
| Statement-I: |  |
| Statement-II: |  |
1. Statement-I and Statement-II both are correct
2. Statement-I is incorrect, Statement-II is correct
3. Statement-I is correct, Statement-II is incorrect
4. Statement-I and Statement-II both are incorrect
Subtopic: Amines - Preparation & Properties | Diazonium Salts: Preparation, Properties & Uses |
75%
Level 2: 60%+
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For the reaction given below:
If mass of aniline taken is \(9.3\text{ g}\) and produced mass of product is \(26.4~\text{g}.\) Then calculate the percentage yield of reaction:
[Atomic mass of \(\mathrm{Br}: 80 \mathrm{~g} \mathrm{~mol}^{-1}\)]
1. 90
2. 77
3. 80
4. 65
If mass of aniline taken is \(9.3\text{ g}\) and produced mass of product is \(26.4~\text{g}.\) Then calculate the percentage yield of reaction:
[Atomic mass of \(\mathrm{Br}: 80 \mathrm{~g} \mathrm{~mol}^{-1}\)]
1. 90
2. 77
3. 80
4. 65
Subtopic: Amines - Preparation & Properties |
65%
Level 2: 60%+
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9.3 g of aniline was treated with \(\mathrm{NaNO}_2\) and \(\text {HCl}\) at 0°C to get product A which reacts with phenol to form a product B. Assuming 100% yield in each step, what is the weight (in g) of product B obtained?
1. 20
2. 40
3. 100
4. 50
1. 20
2. 40
3. 100
4. 50
Subtopic: Amines - Preparation & Properties |
71%
Level 2: 60%+
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Subtopic: Amines - Preparation & Properties |
87%
Level 1: 80%+
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Given below are two statements:
| Statement 1 : | Benzene sulphonyl chloride reacts with \(1^0, 2^0\) and \( 3^0\)amines |
| Statement 2 : | All products of the reaction above are soluble in \(\mathrm{NaOH}\) |
| 1. | Statement 1 is true, Statement 2 is false |
| 2. | Statement 1 is false, Statement 2 is true |
| 3. | Both Statement 1 and Statement 2 are true |
| 4. | Both Statement 1 and Statement 2 are false |
Subtopic: Amines - Preparation & Properties |
91%
Level 1: 80%+
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