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hydroxyl group

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hydroxyl group (hīdrŏk`sĭl), in chemistry, functional group functional group, in organic chemistry, group of atoms within a molecule that is responsible for certain properties of the molecule and reactions in which it takes part.
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 that consists of an oxygen atom joined by a single bond to a hydrogen atom. An alcohol alcohol, any of a class of organic compounds with the general formula R-OH, where R represents an alkyl group made up of carbon and hydrogen in various proportions and -OH represents one or more hydroxyl groups.
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 is formed when a hydroxyl group is joined by a single bond to an alkyl group alkyl group , in chemistry, group of carbon and hydrogen atoms derived from an alkane molecule by removing one hydrogen atom (see radical). The name of the alkyl group is derived from the name of its alkane by replacing the -ane suffix with -yl, e.g.
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 or aryl group aryl group , in chemistry, group of atoms derived from benzene or from a benzene derivative by removing one hydrogen that is bonded to the benzene ring (see radical). The simplest aryl group is phenyl, C6H5 ; it is derived from benzene.
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. A metal hydroxide is formed when a hydroxyl group is joined to a metal (e.g., sodium hydroxide).


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The solid plasticizer comprises at least two different benzotriazole derivatives selected from compounds represented by following formula: R1 is one of a hydrogen atom, a halogen atom and an alkyl group; m is an integer of one to four; and X is one of a hydrogen atom, an alkyl group, an aryl group, an aralkyl group and a group represented by following formula: R2 is one of a hydrogen atom, a halogen atom, an alkyl group and hydroxyl group and n is an integer of one to five.
Tagatose, a monosaccharide differing from fructose only in the position of its fourth hydroxyl group, is a nutraceutical that has prebiotic properties.
Amino acids with uncharged polar side chains +zero net charge at neutral pH +cysteine and tyrosine can lose a poton at alkaline pH +serine, threonine and tyrosine contain polar hydroxyl group +that can participate in hydrogen bond formation +asparagine , glutamine contain a carbonyl group and one amide group +they can participate in hydrogen bond 1.
 
 
 
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