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Indicator for lipids?
transparency. If a few drops of a substance are placed onto a paper product, such as a paper towel, then you will be able to tell if it contains lipids or not. If it shows to be clear or transparent then it is positive for lipids.
What is tollen's reagent and baeyer's reagent?
tollen's reagent = [Ag(NO)2]+ baeyer's reagent= KMnO4
Equation of formaldehyde schiff's reagent benzaldehyde schiff's reagent and acetone schiff's reagent?
Formaldehyde schiffs reagent Formaldehyde schiffs reagent
Is hydrochloric acid a reagent?
chemical reagent
What causes Benedict's reagent to turn red?
This is due to the reduction of the cupric (Cu2+) ions in Benedict's reagent to cuprous form (Cu1+) by reducing sugars, forming cuprous oxide (Cu2O), which is a brick red precipitate. This is why Benedict's test is a good way to detect reducing sugars.
Sudan III is used to detect the presence of what macromolecules?
Sudan III is used to detect the presence of lipids.
How Sudan IV detect the presence of lipid?
The chemical Sudan IV is not soluble in water; it is, however, soluble in lipids. Therefore to test for the presence of lipids in a solution you will use a Sudan IV Test. In this test dark red Sudan IV is added to a solution along with ethanol to dissolve any possible lipids. If lipids are present the Sudan IV will stain them reddish-orange, giving a positive test.
What reagent is used to detect glucose in a solution?
You are not supposed to use buret reagent to detect sugar carbohydrates in a solution. Buret reagent is used to detect proteins. Try using iodine ( I2KI)
What is biuret reagent used for?
Biuret reagent detect peptide bonds.
What reagent is used to detect protein in a solution?
biuret reagent
What macromolecule does lugols reagent detect?
Starch
What happens when you mix Sudan Iv with oil only?
The Sudan IV dissolves into the oil making the oil red.
Importance of Sudan IV?
Like lipids, the chemical Sudan IV is not soluble in water; it is, however, soluble in lipids. Therefore to test for the presence of lipids in a solution you will use a Sudan IV Test. In this test dark red Sudan IV is added to a solution along with ethanol to dissolve any possible lipids. If lipids are present the Sudan IV will stain them reddish-orange, giving a positive test.
Why doesn't egg yolk have a reaction in the Sudan IV test?
Egg yolk should have a reaction in the Sudan IV test, because the Sudan IV tests for lipids (fats), and the yolk does have some fat in it. The Sudan IV test should have not had a reaction for egg membrane or egg white. Hope that helped!
What substance is used as a control in the Sudan iv test?
Usually water is the best control substance for the Sudan IV test.
Does a positive Sudan IV test means that the food is a significant source of lipids?
Sudan IV is a chemical that is only soluble in lipids. This indicates that a positive Sudan IV test means that the food is a significant source of lipids.
Is milk in Sudan IV soluble?
No
