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A positive test for an acid occurs when a substance donates protons (H⁺ ions) in a solution, typically resulting in a decrease in pH. This can be confirmed using indicators such as litmus paper, which turns red in the presence of acids, or through specific chemical reactions that produce characteristic changes. Additionally, a positive test may involve detecting the presence of acidic functional groups in organic compounds through various qualitative analysis methods.
What else can I help you with?
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.
Will a deoxy ribonucleic acid give a positive molisch test?
No, deoxyribonucleic acid (DNA) will not give a positive Molisch test. The Molisch test is a carbohydrate test that detects the presence of sugars, which are polysaccharides or monosaccharides. Since DNA is a nucleic acid composed of nucleotides, not carbohydrates, it does not react positively in this test.
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.
Will fyntal patches make a person test positive for cocaine?
no
Do acetic acid gives positive Tollents test?
Yes they do so.
What happens to the surface of a minerals if the acid test is positive?
It should bubble.
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.
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 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.
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.
