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The xanthoproteic test is a test for the detection of proteins. If proteins are present, concentrated nitric acid reacts with the proteins to form a yellow color that turns orange-yellow by the addition of alkali. This is called the xanthoproteic reaction.

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Will adrenaline give a positive xanthoproteic test?

No, adrenaline will not give a positive xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins, not hormones like adrenaline. Adrenaline is a hormone that is involved in the body's fight-or-flight response, and it does not react in the same way as proteins do in the xanthoproteic test.


Why phenylalanine give negative result with xanthoproteic test?

Phenylalanine gave a yellow to orange color in xanthoproteic test which means it is positive.


Is albumin positive to xanthoproteic test?

Yes, albumin is positive to the xanthoproteic test. The xanthoproteic test is used to detect the presence of proteins containing aromatic amino acids, such as albumin, by forming a yellow color when treated with nitric acid.


What are the results when vasopressin is tested with xanthoproteic?

xanthoproteic test is used to detect the presence of aromatic amino acid in this nitration of an benzee ring with nitric acid takes place.


Do albumin gives a positive xanthoproteic test?

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.


Why glysine give negative result in xanthoproteic test?

No because it doesn't contain aromatic group


Does human insulin give positive xanthoproteic test?

No because it doesn't contain aromatic group


All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?

No, not all amino acids with an aromatic ring give a positive xanthoproteic test. The xanthoproteic test is mainly positive for amino acids containing aromatic rings with phenolic groups such as tyrosine and phenylalanine. Aromatic amino acids like tryptophan do not give a positive xanthoproteic test under identical conditions.


How xanthoproteic acid affect on protein?

Xanthoproteic acid is used to detect the presence of proteins by forming a yellow color when it reacts with proteins that contain aromatic amino acids, such as phenylalanine, tyrosine, and tryptophan. This reaction helps in identifying proteins in laboratory settings by providing a colorimetric test for protein presence.


What functional group gives a positive test in the xanthoproteic test?

The phenolic functional group gives a positive test in the xanthoproteic test. This test involves the reaction of phenolic compounds with concentrated nitric acid, resulting in a yellow coloration due to the formation of nitrophenols.


Why is the xanthoproteic test for phenol negative?

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.


What is the chemical equation of xanthoproteic test?

There is no set chemical formula for xanthroproteic acid. It is a yellow nitrophenyl complex that is derived from proteins when they are treated with nitric acid.