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What organelles become more visible after being stained with iodine?
Iodine stains starch blue. You will be able to see the plastids where the starch is stored in the cytoplasm.
What reagent is used to test for starch?
The reagent that is used to test for starch is a mixture of iodine and potassium iodide in water, or an Iodine - KI reagent. If the reagent turns blue-black in color, then starch is present.
What color does starch change to in the presence of potassium iodide and sodium hyphoclorite?
Starch changes to a blue-black color in the presence of potassium iodide and sodium hypochlorite. This reaction is commonly used as a test for the presence of starch in a solution.
What is the chemical used to test for the presence of starch?
The chemical used to test for the presence of starch is iodine.
What happens when iodine is added to starch and distilled water?
As you know that iodine act as indicator for testing of starch so when a drop of iodine is added to starch it turns bluish black but when added to distilled water nothing happens except the colour of water which turns brown and its is the colour of iodine.
What happens when you mix silver nitrate with a starch and water solution?
When silver nitrate is mixed with a starch and water solution, a complex forms known as the silver-starch complex. This results in a blue-black coloration, which can be used as a chemical indicator for the presence of iodide ions in the solution.
Why does iodine turn blue when mixed with tap water?
Iodine turns blue when mixed with tap water because iodine forms a complex with starch in the presence of water, resulting in a blue-black color. This reaction is commonly used as an indicator for detecting the presence of starch in a solution.
When iodine solution is added to cheese what colour will it become?
Red
What could you say about a substance if it did not turn blue-black with iodine?
While presence of starch is indicated by the bluish-black color change of a substance with the introduction of Iodine, it doesn't necessarily mean the absence of starch is the substance doesn't become blue or black in color. If a substance doesn't become blue or black in color on the application of iodine, it means the substance doesn't form any complex with Iodine. Generally, when a substance creates a complex with Iodine, it is in blue color.
Which white powder turns blue-black in iodine solution?
Starch powder turns blue-black in iodine solution due to the formation of a starch-iodine complex.
What happens when iodine is added to a starch solution?
When iodine is added to a starch solution, the iodine molecules will interact with the starch molecules through a process called iodine-starch complex formation. This complex leads to a characteristic color change from the initial colorless solution to a dark blue-black color, indicating the presence of starch in the solution.
What happens if you add iodine to potato?
If you add iodine to a potato, the iodine will react with the starch present in the potato. This reaction will result in a color change, turning the potato a blue-black color where starch is present. This can be used as a test to detect the presence of starch in foods.
