Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to:
1. | Formation of intramolecular H-bonding |
2. | Formation of carboxylate ion |
3. | More extensive association of carboxylic acid via van der waals force of attraction |
4. | Formation of intermolecular H-bonding |
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. |
Compounds that can exhibit tautomerism, are:
1. l and ll
2. l and lll
3. ll and lll
4. l, ll and lll
An organic compound X having molecular formula C5H10O yields phenyl hydrazone and gives a negative response to the iodoform test and Tollen's test. It produces n-pentane on reduction. X could be: