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Schultze's solution turns purple when tested with cellulose due to the presence of iodine in the solution, which forms a complex with the hydroxyl groups in cellulose. This interaction results in a characteristic color change, as the iodine molecules fit into the helical structure of the cellulose, producing a deep purple color. This reaction is commonly used as a qualitative test to confirm the presence of cellulose in various substances.
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A solution is tested and found to have a pH of 1. The solution is?
One possibility is a 10% solution of hydrochloric acid.
What does it mean when the protein test turn purple?
When a protein test turns purple, it typically indicates the presence of protein in the sample being tested. This color change is commonly associated with the Biuret test, where proteins react with copper ions in an alkaline solution, resulting in a purple complex. The intensity of the purple color can reflect the concentration of protein present. This test is often used in laboratories to assess protein levels in various biological samples.
What factors could be tested using litmus paper?
The acidity or alkalinity of a solution, pH indicator.
What food type show no colour change when tested with biuret solution?
Fats and oils show no color change when tested with biuret solution. This is because biuret reagent specifically tests for proteins, and fats have a different chemical composition that does not react with the reagent to produce a color change.
What type of is saccharide has no change when tested with benidicts solution?
A monosaccharide like glucose would not change when tested with Benedict's solution. This is because Benedict's solution is used to test for the presence of reducing sugars, which monosaccharides like glucose are capable of reducing due to their open-chain form.
If you are doing the baeyer test and your solution stays purple what does that mean?
If your solution stays purple during the Baeyer test, it means that no unsaturation (such as carbon-carbon double or triple bonds) is present in the compound being tested. The purple color indicates a negative result for unsaturation.
What are the steps to do the biuret test?
1) Add 2cm3 of solution to be tested to a test-tube. 2) Add an equal volume of 5% potassium hydroxide* solution and mix. 3) Add 2 drops of 1% copper sulphate solution and mix. A mauve or purple colour develops if protein is present. *Sodium hydroxide solution can be used instead of potassium hydroxide solution.
A solution is tested and found to have a pH of 1. The solution is?
One possibility is a 10% solution of hydrochloric acid.
What is starch tested for?
Iodine solution turns blue/black
What is a possible solution to a problem or statement which can be tested?
One possible solution is to design an experiment or hypothesis that can be tested using observations, data collection, and analysis. This allows for systematic investigation and evaluation of the proposed solution to determine its effectiveness and validity.
What is a positive test result for starch?
A positive test result for starch is the formation of a blue-black color when iodine solution is added to the sample being tested. This color change indicates the presence of starch in the sample.
A solution is tested and found to have a pH of 1 the solution is?
The solution is acidic. A pH of 1 indicates a high concentration of H+ ions in the solution, making it strongly acidic.
How can pH of a solution be tested?
By dissolving the pH solution a colour change will occur in the solution that should be tested.Compairing the colour of solution to the colours marked on of pH chart we can find out if the solution we tested is of alkaline nature or of acidic nature or neutral.Solutions of pH7are neutral solutions.Solutions below pH7 are acidic solutions and those above pH7 are alkaline solutions.
How can you tell a mixture is a solution?
You can't tell that a mixture is a solution to anything until the mixture is thoroughly chemically tested and proven.
What is the best lab tested synthetic motor oil?
royal purple but it does contain alot of sulfur Google it
When the two solution are tested solution A is pH 2 solution B is pH 8 What bottle is the corrosive label probably from?
The lower the PH, the higher the acidity.
When A compound is added to a solution of hydrochloric acid what Chemical is being tested?
Generally base is added to HCl, So base should be tested.
