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Subtopic: Amines - Preparation & Properties |
From NCERT
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Arrange the following amines in decreasing order of basicity:
1. (A) > (C) > (D) > (B)
2. (C) > (A) > (B) > (D)
3. (B) > (C) > (D) > (A)
4. (C) > (B) > (A) > (D)
| (A) |  |
(B) |  |
| (C) |  |
(D) |  |
2. (C) > (A) > (B) > (D)
3. (B) > (C) > (D) > (A)
4. (C) > (B) > (A) > (D)
Subtopic: Amines - Preparation & Properties |
From NCERT
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The most stable diazonium salt among the following is :
1. p‐Nitrobenzene‐diazonium chloride
2. 2,4‐Dinitrobenzene‐diazonium chloride
3. 2,4,6‐Trinitrobenzene‐diazonium chloride
4. p‐Methoxybenzene‐diazonium chloride
1. p‐Nitrobenzene‐diazonium chloride
2. 2,4‐Dinitrobenzene‐diazonium chloride
3. 2,4,6‐Trinitrobenzene‐diazonium chloride
4. p‐Methoxybenzene‐diazonium chloride
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
From NCERT
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The correct matches of reagents that are used to react with diazonium salt \((Ph-N^+_2X^-) \) to get the product given against each reagent are:
1. (a) and (b)
2. (a), (b), and (c)
3. (a), (b), (c), and (d)
4. (a), (b), and (d)
| Reagents | Products | |
| (a) | HBF4 | Ph – F |
| (b) | CuCN/KCN | Ph – CN |
| (c) | CuCl2/HCl | Ph – Cl |
| (d) | Ph – NH2 | Ph – N = N – Ph |
2. (a), (b), and (c)
3. (a), (b), (c), and (d)
4. (a), (b), and (d)
Subtopic: Diazonium Salts: Preparation, Properties & Uses |
From NCERT
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Match the organic compounds given in List–I with their corresponding pKb given in List–II:
| Amine (List–I) | List - II pKb (aqueous medium) | ||
| A. | Aniline | (i) | 9.0 |
| B. | Ethanamine | (ii) | 3.29 |
| C. | N-Ethylethanamine | (iii) | 3.25 |
| D. | N,N-diethylethanamine | (iv) | 3.0 |
| A | B | C | D | |
| 1. | (i) | (ii) | (iv) | (iii) |
| 2. | (i) | (iv) | (iii) | (ii) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Amines - Preparation & Properties |
From NCERT
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A compound undergoes hydrolysis, resulting in the formation of two products. One of these products, when treated with sodium nitrite and hydrochloric acid, yields a product that does not respond to the iodoform test. The other product is capable of reducing Tollen's reagent and Fehling's solution.
Based on these observations, the compound is:
1. CH3CH2CH2NC
2. CH3CH2CH2CN
3. CH3CH2CH2ON = O
4. CH3CH2CH2CON(CH3)2
Based on these observations, the compound is:
1. CH3CH2CH2NC
2. CH3CH2CH2CN
3. CH3CH2CH2ON = O
4. CH3CH2CH2CON(CH3)2
Subtopic: Cyanides & Isocyanides |
NEET - 2013
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NEET 2026 - Target Batch - Vital
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Subtopic: Amines - Preparation & Properties | Mechanism |
From NCERT
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Subtopic: Amines - Preparation & Properties |
78%
From NCERT
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Subtopic: Amines - Preparation & Properties |
59%
From NCERT
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For the following ions, choose the correct statement:
1. III is the most stable in aqueous phase
2. I is the most stable in the aqueous phase
3. III is the smallest in size
4. II is the most stable in the aqueous phase
1. III is the most stable in aqueous phase
2. I is the most stable in the aqueous phase
3. III is the smallest in size
4. II is the most stable in the aqueous phase
Subtopic: Amines - Preparation & Properties |
From NCERT
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