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It should react to this reagent. However it must be HEATED before it will react.


This is due to the fact that when Ninhydrin is heated it stabilizes and the reacts with the -NH2 groups on the amino acid.

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If you mixed albumin with 5 drops of biuret reagent what color do you get?

If you mix albumin with 5 drops of biuret reagent, the resulting color would most likely be a purple hue. This color change occurs due to the presence of peptide bonds in the protein, which react with the biuret reagent to form a colored complex.


Is egg albumin positive to millon test?

Yes, egg albumin is positive for the Millon's test due to the presence of aromatic amino acids like tyrosine, which react with Millon's reagent to produce a red color.


Is casein positive to millon's test?

Yes, because casein is one of the protein that makes up milk. And when milk is denatured (by heat, or by any means), the denatured protein is tyrosine-which is the only protein positive for millon's test.


Why doesn't ninhydrin react with polypeptides?

Ninhydrin does react with polypeptides, specifically with the amino group of amino acids present in the polypeptide chain. This reaction leads to the formation of a colored compound that can be used for detection and analysis of amino acids and polypeptides.


Does ninhydrin has flaws?

Yes, ninhydrin has some drawbacks. It can react with other substances present in the sample, leading to false positive results. Additionally, the reaction with ninhydrin is not specific to a particular amino acid, which can limit its application in identifying specific amino acids.


Does tollens reagent react with cyclohexanone?

Yes, Tollens' reagent can react with cyclohexanone. Tollens' reagent is commonly used to test for the presence of aldehydes, including cyclohexanone, by forming a silver mirror when the aldehyde is present.


Why Tollens reagent does not react with ketone?

Tollens reagent is a mild oxidizing agent that reacts with aldehydes to produce a silver mirror. Ketones, however, do not have a hydrogen atom bonded to the carbonyl group, making them resistant to oxidation by Tollens reagent. As a result, ketones do not react with Tollens reagent.


What do you call a substance to react with another element?

A "reagent" or "reactant".


Why biuret regent react with single amino acid?

The biuret reagent should not react with a single amino acid. The reagent reacts when there is a peptide bond linking amino acids together. If you are seeing the biuret reagent react in the presence of a single amino acid, then there must be some amino acids that are still linked together.


Would the ninhydrin test be useful and reliable for showing the presence or the absence of proteins?

Yes, the ninhydrin test is useful for detecting the presence of proteins because it reacts with amino acids to produce a colored product. However, it may not be reliable for determining the absence of proteins due to possible interference from other substances that can also react with ninhydrin.


How can you make a tertiary alcohol from a grignard reagent?

you react the grignard with either an ester, an acid chloride or a ketone to get a tertiary alchohol. if you react a grignard reagent with an aldehyde you get a secondary alcohol and if you react the grignard with formaldehyde (methenal) you get a primary alchohol. same thing happens if u use R-Li instead of a grignard reagant.


Would raffinose react with benedicts reagent?

Benedicts reagent tests for reducing sugars, so the question is, is raffinose a reducing sugar. Raffinose is a trisaccharide made up of glucose, fructose and galactose. It is not a reducing sugar because all of its anomeric carbons are bonded, so it will not react with benedicts reagent.