- 1(current)
Q. No.Which of the following bases is the strongest in an aqueous medium?
1. CH3NH2
2. NCCH2NH2
3. (CH3)2NH
4. C6H5NHCH3
Subtopic: Mechanism |
77%
From NCERT
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Acid anhydrides on reaction with primary amines give
1. amide
2. imide
3. secondary amine
4. imine
Subtopic: Mechanism |
67%
From NCERT
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Match the reactions given in Column I with the statements given in Column II.
| Column I | Column II |
| A. Ammonolysis | 1. Amine with a lesser number of carbon atoms |
| B. Gabriel phthalimide synthesis | 2. Detection test for primary amines. |
| C. Hofmann bromamide reaction | 3. Reaction of phthalimide with KOH and R—X |
| D. Carbylamine reaction | 4. Reaction of alkyl halides with NH3 |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
Subtopic: Diazonium Salts: Preparation, Properties & Uses | Mechanism |
88%
From NCERT
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| Assertion (A): | Acylation of amines gives a monosubstituted product whereas alkylation of amines gives a polysubstituted product. |
| Reason (R): | Acyl group sterically hinders the approach of further acyl groups. |
| 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. | (A) is False but (R) is True. |
Subtopic: Mechanism |
75%
From NCERT
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Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
| a. | Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc.HNO3 |
| b. | Acetic anhydride/pyridine followed by conc. H2SO4 + conc. HNO3 |
| c. | Dil. HCI followed by reaction with conc. H2SO4 + conc. HNO3 |
| d. | Reaction with conc. HNO3 + conc. H2SO4 |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Subtopic: Mechanism |
72%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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- 1(current)
Q. No.
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