What specific shade arises from the combination of iodine and starch?

No color change (Iodine Solution remains brown) Iodine/Potassium Iodide solution changed from brown to blue- black. Interpretation. Starch is not present which, in the presence of starch, made the solution cloudy. Although this did not change the colour reac- tion, the perceived colour changed, making it ... Problem: Is the plastic bag permeable to iodine? Hypothesis: This iodine will get into the bag of starch. (. Independent Variable: color of the iodine solution. Apr 13, 2018 ... I did several tests with lugol in order to detect presence of starch in a cooking juice. ... starch-iodine complex to re-form. Cite. Deep black with ferric chloride and brownish black with iodine solution state the presence of higher amount of tannins and lower amount of starch respectively. Iodine solution can be used to test plant leaf tissue for the presence of starch. A scientific prediction is a testable statement about a possible outcome, ... Apr 3, 2025 ... In aqueous solution even minute amounts of iodine in the presence of starch produce a blue-black color. Jan 9, 2020 ... When starch is mixed with iodine aqueous solution, it changes to a blue-black colour. If starch is absent, the brown colour of the solution will persist. Aug 24, 2024 ... The reason sugar does not change color with iodine solution is that iodine is specifically used to test for the presence of starch, ... Starch solutions are used as indicators in the detection of the endpoint of titrations involving Iodine solutions. Starch reacts with Iodine in the presence ...