Table of Contents [hide]
- 1 Why boiling point of aldehyde and ketones are lower than alcohol and carboxylic acids?
- 2 Why do carboxylic acids have higher boiling points than aldehydes and ketones?
- 3 Why the boiling point of aldehydes and ketones are lower than that of corresponding acids?
- 4 Why do ketones have a lower boiling point?
- 5 Why aldehydes have lower boiling point than corresponding alcohols?
- 6 Why do ketones have higher boiling points than aldehydes of comparable molecular masses?
- 7 Why do aldehydes and ketones have lower boiling points than alcohols of similar molecular mass?
Why boiling point of aldehyde and ketones are lower than alcohol and carboxylic acids?
The reason for such behaviour is the weak molecular association of these compounds occurring due to dipole-dipole interactions. Similarly, the boiling of aldehydes and ketones are lower than alcohol of nearly same molecular masses. The reason is lack of intermolecular hydrogen bonding.
Why do carboxylic acids have higher boiling points than aldehydes and ketones?
Carboxylic acids have higher boiling points than aldehyde, ketones and even alcohols of comparable molecular mass because of the extent of intermolecular-hydrogen bonding with water, due to which they exist as associated molecules. The hydrogen bonds are not completely broken in the vapour state.
Why the boiling point of aldehydes and ketones are lower than that of corresponding acids?
Why are boiling of aldehydes and ketones lower than those of the corresponding acids? In the carboxylic acids, the carboxyl group are involved in the intermolecular hydrogen bonding. Therefore, aldehydes and ketones have lower boiling points than the corresponding acids of comparable molecular mass.
Why is the boiling point of carboxylic acid higher than aldehyde?
> The carboxylic acid has a higher boiling point. The higher boiling point is due to the presence of intermolecular hydrogen bonding. On comparing it with the corresponding alcohol, carboxylic acid has a higher boiling than the corresponding aldehyde, ketone, and even alcohols of the comparable molecular masses.
Why do aldehydes and ketones have higher boiling points than that of alkanes?
Aldehydes and ketones have a much higher boiling point than the alkanes. This is attributed to the dipole moment of the carbonyl group. The reason for this is that the non-polar region of the carbon chain is getting larger as the polar region (C=O) is staying the same.
Why do ketones have a lower boiling point?
The polar carbon-to-oxygen double bond causes aldehydes and ketones to have higher boiling points than those of ethers and alkanes of similar molar masses but lower than those of comparable alcohols that engage in intermolecular hydrogen bonding.
Why aldehydes have lower boiling point than corresponding alcohols?
The boiling points of aldehydes and ketones are lower than that of corresponding alcohols and acids due to absence of intermolecular H–bonding in aldehydes and ketones.
Why do ketones have higher boiling points than aldehydes of comparable molecular masses?
For ketones and aldehydes of similar molecular mass, ketones have higher boiling point due to the fact that its carbonyl group is more polarized than in aldehydes. So, interactions between molecules of ketones is stronger than between molecules of aldehydes, and that gives a higher boiling point.
Why ketones have higher boiling point than?
Why do aldehydes and ketones have higher boiling points than alkanes?
Why do aldehydes and ketones have lower boiling points than alcohols of similar molecular mass?
Aldehydes and ketones have higher boiling points than alkanes and ethers of similar mass due to dipole-dipole interactions. Aldehydes and ketones have lower boiling points than alcohols of similar mass because they do not form hydrogen bonds.