In the below reaction, the structure of "A" is:
| 1. | 2. | ||
| 3. | 4. | 
What is the correct order of the carboxylic acids' strength?
| I. | II. | III. | 
| 1. | I > II > III | 2. | II > III > I | 
| 3. | III > II > I | 4. | II > I > III | 
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is:
| 1. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration. | 
| 2. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation. | 
| 3. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism. | 
| 4. | A carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol. | 
The product formed by the reaction of an aldehyde with a primary amine is:
1. Ketone
2. Carboxylic acid
3. Aromatic acid
4. Schiff base
The esters that get hydrolyzed most easily under alkaline conditions is?
| 1. | |
| 2. | |
| 3. | |
| 4. | 
The reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagents are:
| 1. | A Grignard reagent. | 
| 2. | Hydrazine in the presence of a feebly acidic solution. | 
| 3. | Hydrocyanic acid. | 
| 4. | Sodium hydrogen sulphite. | 
Compounds that can exhibit tautomerism, are:
1. l and ll
2. l and lll
3. ll and lll
4. l, ll and lll
The compound among the following that will not be soluble in sodium hydrogen carbonate is:
| 1. | 2, 4, 6-Trinitrophenol | 2. | Benzoic acid | 
| 3. | o-Nitrophenol | 4. | Benezenesulphonic acid |