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Is fehling test positive for gluconic acid?
No. Fehling's test is positive for glucose which forms gluconic acid as the product.
Can vitriol cause a positive on a drug test?
Vitriol? As in sulfuric acid? No. It can cause a positive on a death test, though.
Why does glycine test positive on biurets amino acid testing?
It shouldn't test positive. The Biuret test is only positive for a peptide or protein with 2 or more peptide bonds. Glycine is an individual amino acid. You'll see the blue from the Cu2+ with Glycine, but that's a negative result. A violet color is the positive.
What happens to the surface of a minerals if the acid test is positive?
It should bubble.
Will fyntal patches make a person test positive for cocaine?
no
Do acetic acid gives positive Tollents test?
Yes they do so.
What color test tube would I use for a Lactic acid test?
You can use a clear test tube for a lactic acid test. This allows you to easily observe any color changes that may occur during the test, indicating the presence of lactic acid.
What tripeptide will give a positive xanthoproteic test?
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.
Salicyclic acid gives a positive test with FeCl3?
This is a commonly used test to detect the presence of phenolic hydroxyl groups in organic compounds. The reaction between salicylic acid and FeCl3 forms a complex with a purple color, indicating the presence of phenolic groups in the compound.
What does the Bernstein test entail?
a small quantity of hydrochloric acid (HCl) is directed into the patient's esophagus. If the patient feels pain from the acid, the test is positive for reflux esophagitis.
What happens to the surface of a mineral if the acid test is positive?
If the acid test is positive for a mineral, the surface of the mineral may show signs of fizzing or bubbling due to a chemical reaction between the acid and the mineral. This reaction indicates that the mineral contains carbonate minerals like calcite or dolomite, which are reactive to acid.
What other non pharis metals test positive like gold?
Platinum, silver, and copper are other non-ferrous metals that can test positive using the same methods as gold, such as the streak test, acid test, and magnetic test.
