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why is an alcohol more polar than a ketone?
why is 2 propanol more polar than 2 propanone?
why is 2 propanol more polar than 2 propanone?
alcohol or ketone
- Thread starter marymatthews
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Polarity Ranking of the Functional Groups:
(most polar first)
Amide > Acid > Alcohol > Ketone ~ Aldehyde > Amine > Ester > Ether > Alkane
I think the reasoning behind why an alcohol is more polar than a ketone is because ketones/aldehydes lack a hydroxyl group and therefore don't have intermolecular hydrogen bonds....whereas alcohols do. In other words one ketone can't H-bond with another ketone..but an alcohol can H-bond with another alcohol.
However, ketones and aldehydes ARE capable of hydrogen bonding with water because of the carbonyl oxygen. (as are alcohols because of their hydroxyl group)...so they are more polar than like alkanes...that have no oxygen.
Remember...only FON can H-bond. Within themselves, ketones don't have a H-F, H-N, or H-O bond.
(most polar first)
Amide > Acid > Alcohol > Ketone ~ Aldehyde > Amine > Ester > Ether > Alkane
I think the reasoning behind why an alcohol is more polar than a ketone is because ketones/aldehydes lack a hydroxyl group and therefore don't have intermolecular hydrogen bonds....whereas alcohols do. In other words one ketone can't H-bond with another ketone..but an alcohol can H-bond with another alcohol.
However, ketones and aldehydes ARE capable of hydrogen bonding with water because of the carbonyl oxygen. (as are alcohols because of their hydroxyl group)...so they are more polar than like alkanes...that have no oxygen.
Remember...only FON can H-bond. Within themselves, ketones don't have a H-F, H-N, or H-O bond.
