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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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Subtopic: Urea & Nitro Compound |
Level 4: Below 35%
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Determine the number of bromine atoms in the major product for the following reaction scheme:
1. 2
2. 4
3. 5
4. 3
1. 2
2. 4
3. 5
4. 3
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
Level 4: Below 35%
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Correct order of stability among the following is:
(a)
(b) 
(c) 
(d) 
1. a > b > c > d
2. d > c > b > a
3. b > a > c > d
4. d > b > c >a
(a)
(b) (c) (d) 1. a > b > c > d
2. d > c > b > a
3. b > a > c > d
4. d > b > c >a
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
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 |
73%
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 |
54%
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 |
76%
Level 2: 60%+
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Which among the following react with Hinsberg's reagent?
Choose the correct answer from the options given below:
1. B and D only
2. C and D only
3. A, B and E only
4. A, C and E only
| (A) |  |
(B) |  |
| (C) | CH3 –NH2 | (D) | N(CH3)3 |
| (E) |  |
||
Choose the correct answer from the options given below:
1. B and D only
2. C and D only
3. A, B and E only
4. A, C and E only
Subtopic: Identification of Primary, Secondary & Tertiary Amines |
82%
Level 1: 80%+
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