The xanthproteic test gives a positive result when proteins with amino acids carrying aromatic groups are present. Aromatic groups are functional groups consisting of a 6 hydrocarbons with alternating double and single bonds between carbon atoms forming rings.
A functional group is a specific arrangement of atoms within a molecule that gives it its characteristic chemical properties. A molecule is a group of atoms bonded together, which may contain one or more functional groups. In other words, a functional group is a part of a molecule that determines its reactivity and behavior.
The functional group of benzoic acid is a carboxylic acid group, which consists of a carbonyl group (C=O) and a hydroxyl group (OH) attached to a benzene ring. This gives benzoic acid its acidic properties.
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
No, vanillin is not positive in the DNPH (2,4-dinitrophenylhydrazine) test. The DNPH test is used to detect the presence of carbonyl (aldehyde or ketone) functional groups in compounds and vanillin does not contain a carbonyl group.
The functional group contained in a thiol is the sulfhydryl group, which is a sulfur atom bonded to a hydrogen atom. Thiols are organic compounds that contain this sulfhydryl group, which gives them their characteristic properties such as strong odor, reactivity, and ability to form disulfide bonds.
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
No because it doesn't contain aromatic group
A functional group is a specific arrangement of atoms within a molecule that gives it its characteristic chemical properties. A molecule is a group of atoms bonded together, which may contain one or more functional groups. In other words, a functional group is a part of a molecule that determines its reactivity and behavior.
The functional group found in polyester is an ester group, which is formed by the reaction between an alcohol group and a carboxylic acid group. This ester group is what gives polyester its characteristic properties such as durability and resistance to wrinkles.
The functional group of benzoic acid is a carboxylic acid group, which consists of a carbonyl group (C=O) and a hydroxyl group (OH) attached to a benzene ring. This gives benzoic acid its acidic properties.
The functional group is the NH2. It is an amino functional group.
No because it doesn't contain aromatic group
No, methyl is not a functional group commonly found in alcohols. The functional group that is commonly found in alcohols is the hydroxyl group (-OH). Methyl, on the other hand, is a functional group commonly found in compounds called methyl groups (-CH3).
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
Phenylalanine. When phenylalanine is subjected to a xanthoproteic test, it will produce a yellow solution due to the reaction of the aromatic ring with nitric acid, indicating the presence of phenyl group in the tripeptide.
No, vanillin is not positive in the DNPH (2,4-dinitrophenylhydrazine) test. The DNPH test is used to detect the presence of carbonyl (aldehyde or ketone) functional groups in compounds and vanillin does not contain a carbonyl group.
It is the amino functional group amine