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Hydroxyl groups are -OH molecules that form the 'alcohols' in organic chemistry.
'Poly' equates to 'many.'
An important polyhydroxyl group is 1, 2-ethanediol (ethylene glycol) C2H4(OH)2
which is in anitfreeze for cars I think.
Wiki User
∙ 13y ago
Polyhydroxy aldehydes are a class of organic compounds that contain multiple hydroxyl groups (-OH) and an aldehyde functional group (CHO). They are commonly found in nature, such as in sugars like glucose and fructose. These compounds are important in various biological processes and have applications in the food and pharmaceutical industries.
Wiki User
∙ 12y agosaccharides are polyhydroxy aldehydes or ketones, that is ,they are molecules with more than one hydroxyl group[-OH] and a carbonyl group [c=o] either at the terminal carbon atom [aldose] or the second carbon atom [ketose].
Wiki User
∙ 15y agoAn alcohol with more than one hydroxy group, such as ethylene glycol.
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How will you characterize the rate of reaction of an aldehyde compared to an aliphatic aldehyde?
Aldehydes tend to react faster than aliphatic aldehydes due to the presence of electron-withdrawing groups in the aldehyde functional group, which makes the carbonyl carbon more electrophilic and susceptible to nucleophilic attack. This increased electrophilicity enhances the rate of reaction of aldehydes compared to aliphatic aldehydes.
Which aldehyde do not give fhelings test?
Aromatic aldehydes, such as benzaldehyde, typically do not give a positive Fehling's test due to the lack of alpha-hydrogens required for oxidation. Aromatic aldehydes are not easily oxidized in the Fehling's test compared to aliphatic aldehydes.
What are the formulas of aldehydes and ketones?
The general formula for aldehydes is RCHO (where R is a hydrocarbon group), and the general formula for ketones is R2CO (where R is a hydrocarbon group).
Are monomers and polymers of aldehydes and keytones that have hydroxyl groups attached?
No, monomers and polymers of aldehydes and ketones do not have hydroxyl groups attached. Aldehydes and ketones have a carbonyl group (C=O) attached to at least one carbon atom and do not have any hydroxyl groups (-OH) attached to the carbon chain.
What element do amines contain that aldehydes and alcohol do not?
Amines contain a nitrogen atom bonded to one or more carbon atoms, while aldehydes contain a carbonyl group and alcohols contain a hydroxyl group. Nitrogen is the element found in amines that is not present in aldehydes and alcohols.
Polyhydroxy derivatives of aldehydes or ketoens are?
Carbohydrates
What is charbohydrants?
any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the supporting tissues of plants and are important food for animals and people.
Is an apple a monosaccharide?
Well, basically carbohydrates are the compounds of carbon,hydrogen,oxygen. They are polyhydroxy aldehydes or polyhydroxy ketones. monisaccharide is a carbohydrate. monosaccahrides are sweet and water soluble . monosaccharides include glucose(dextrose), fructose(levulose), galactose,xylose,ribose.
What is polyhydroxy butyrate?
Polyhydroxybutyrate is a polymer with various uses.
Difference between aromatic and aliphatic aldehyde?
Aromatic aldehydes contain an aromatic ring in their structure, while aliphatic aldehydes have a straight or branched carbon chain. Aromatic aldehydes typically have a stronger smell compared to aliphatic aldehydes due to their benzene ring. Aromatic aldehydes are commonly found in natural sources like plants, while aliphatic aldehydes are more often associated with industrial processes.
Name different types of crbohydrate present in food material?
carbohydrate is an organic compound which has the empirical formula Cm(H2O)n; that is, consists only of carbon, hydrogen and oxygen, with the hydrogen and oxygen in a 1:2:1 atom ratio (as in water). Carbohydrates can be viewed as hydrates of carbon, hence their name. Structurally however, it is more accurate to view them as polyhydroxy aldehydes and ketones.
What is carborhydates?
A carbohydrate is an organic compound with the empirical formula Cm(H2O)n (where m could be different from n); that is, consists only of carbon, hydrogen, and oxygen, with a hydrogen:oxygen atom ratio of 2:1 (as in water). Carbohydrates can be viewed as hydrates of carbon, hence their name. Structurally however, it is more accurate to view them as polyhydroxy aldehydes and ketones. Carbohydrates are an ideal source of energy for the body.
Which two groups have the same functional group?
ketones and aldehydes
How will you characterize the rate of reaction of an aldehyde compared to an aliphatic aldehyde?
Aldehydes tend to react faster than aliphatic aldehydes due to the presence of electron-withdrawing groups in the aldehyde functional group, which makes the carbonyl carbon more electrophilic and susceptible to nucleophilic attack. This increased electrophilicity enhances the rate of reaction of aldehydes compared to aliphatic aldehydes.
What homologus series is ethanal in?
Aldehydes
Which aldehyde do not give fhelings test?
Aromatic aldehydes, such as benzaldehyde, typically do not give a positive Fehling's test due to the lack of alpha-hydrogens required for oxidation. Aromatic aldehydes are not easily oxidized in the Fehling's test compared to aliphatic aldehydes.
Why are aldehydes more reactive than ketones towards nucleophile?
Aldehydes are less sterically hindered than ketones. Also, aldehydes have fewer electron donating groups (EDG's) which can stabilize an electron-poor area. The extra carbon chain that ketones have that aldehydes do not have are the reason for both of these things. The neighboring carbon to the carbonyl carbon is an EDG and the carbon chain causes steric hindrance.
