1. | |
2. | |
3. | |
4. |
1. | 2. | ||
3. | 4. |
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) |
The major product (P) formed in the following reaction sequence is :
1. | 2. | ||
3. | 4. |
Match list-I with list-II:
List-I (Amines) | List-II (pKb values) | ||
(a) | N-methylmethanamine | (i) | 9.30 |
(b) | Ammonia | (ii) | 9.38 |
(c) | N-methylaniline | (iii) | 4.75 |
(d) | Benzenamine | (iv) | 3.27 |
(a) | (b) | (c) | (d) | |
1. | (iv) | (ii) | (i) | (iii) |
2. | (iv) | (iii) | (i) | (ii) |
3. | (iii) | (iv) | (i) | (ii) |
4. | (i) | (iv) | (iii) | (ii) |
1. | 2. | ||
3. | 4. |
I | Primary aliphatic amines react with HNO2 to give unstable diazonium salts. |
II | Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K. |
1. | I is incorrect but II is correct |
2. | Both I and II are correct |
3. | Both I and II are incorrect |
4. | I is correct but II is incorrect |
The reagent 'R' in the given sequence of a chemical reaction is :
1. | HI | 2. | CuCN/KCN |
3. | H2O | 4. | CH3CH2OH |
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
1. | 2. | ||
3. | 4. |