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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.

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9y ago
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9y ago

The hydroxyl group will make the test positive in a xanthoproteic test. This is due to the presence of a phenyl group.

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11y ago

a xanthproteic test gives a positive (yellow) when there is an aromatic group attached to a protein , e.g. tyrosine.

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11y ago

Aromatic group

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12y ago

Tyrosine , phenyl alanine, tryptophan

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13y ago

aromatic group

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Q: What functional group gives a positive test in the xanthoproteic test?
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Related questions

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.


Does human insulin give positive xanthoproteic test?

No because it doesn't contain aromatic group


Is vanillin positive in DNPH test?

Yes, it contains carbonyl functional group- aldehyde! :)


Is Methyl the functional group that is commonly found in alcohols?

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).


What is the CH3CH2CH2-NH2 functional group?

The functional group is the NH2. It is an amino functional group.


What functional group can you get after the oxidation of a hydroxyl group?

if the alcohol is a primary alcohol the itis oxidized to give aldehyde and if secondary it gives ketone.


Why glysine give negative result in xanthoproteic test?

No because it doesn't contain aromatic group


What is the functional group of amines?

The amino functional group.


What is the functional group?

It is the amino functional group amine


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 in a molecule influences the way that molecule reacts?

Functional groups are responsible for chemical reactions of molecules.


What is the NH2 functional group?

It is the amino functional group amine