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What happens when iodine solution turns blue-black what substance is present?
Starch is present. Check a potato with iodine.
When iodine solution turns blue-black what substance is present?
Starch
If iodine solution turns blue-black what substance is present?
Starch is likely present in the solution if iodine turns blue-black. This color change is a characteristic reaction that indicates the presence of starch.
What substance is present if iodine soluntion turns blue-black?
If iodine solution turns blue-black, it indicates the presence of starch. Iodine forms a complex with starch, resulting in the blue-black color.
What chemical is used to test for starch and what is the result if starch is present?
Iodine solution is used to test for starch. If starch is present, the iodine solution will turn from brown to blue-black.
What is the function of iodine?
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.
Why do you need to add iodine solution to a specimen?
Iodine solution is commonly used to test for starch. If starch is present in a substance (e.g. a leaf which undergone photosynthesis) then the iodien solution would turn blue black. If no starch is present then it remains as light brown.
What chemical reagent tests for starch?
Iodine solution is the common chemical reagent used to test for the presence of starch. When iodine solution is added to a substance containing starch, it will turn from amber or yellow to a blue-black color if starch is present.
What effect the iodine solution have on a leaf?
Iodine solution can test for the presence of starch in a leaf. When iodine solution is applied to a leaf, it will turn blue-black in areas where starch is present. This is because iodine reacts with starch to form a bluish-black complex.
What color is starch with iodine solution?
it is a yellowish/orange colour but when iodine is present, than it will turn an dark-blue/black colour
What is a substance that does not dissolve in water does nothing in vinegar and turns black in an iodine solution?
Starch
What color does the indicator turn when starch is present?
Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. FOR WHAT PURPOSE WE USE STARCH-IODINE INDICATOR PAPER
