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iodine is an indicator for starch, potatoes are basically starch storage organs for potato plants. that's why they are good to eat, mmm starch!
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∙ 16y ago
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∙ 14y agoa whitish colour, has a bit of a green tint, or a pink tint, depending on the circumstances.
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∙ 14y agoThe starch in the potato would react with the iodine, causing it to take a blue-black colour.
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∙ 11y agothe potato will go a black colour because of the starch inside of it
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∙ 14y agodue to the presence of starch.
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∙ 9y agoDark red
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Why does sea salt turn brown?
Iodine is used to find starch. If no starch is present, a rusty brown color will appear. If starch is present like in bread and potato, the iodine when put on will turn blackish blue. That is known as a chemical reaction. Since there is no starch in water, the iodine in the water stays the same color as it started (brown). Hope that helps!! :)
What color does iodine turn a onion?
blue
What color does iodine turn when you do an experiment for starch?
dark blue - purple
What color is the solution of red cabbage and lemon juice when first mixed?
The color remain red because vinegar is an acidic solution.
Is color a physical change?
Only if the color change is not permanent. Take Iodine for example (that's pronounced Eye-oh-deen), it is a solid metal that is grayish in color in its solid state, however in its gas state it's a purple or violet color. Once it reverts to its solid state, it turns gray again. This is a PHYSICAL property of Iodine. If the color changed permanently to something else, it would be a chemical change.
What liquid will best change the potato's color?
iodine solution
What color develops when iodine solution is added to starch solution?
Yellowish brown.
What color would you see if iodine solution is added to starch?
A deep blue colour
Why does glycogen change to red when iodine solution is added?
Iodine tests for complex sugars. Glycogen is a complex sugar and will change dark purple when iodine solution is added (color is irrelevant, all you really need to know is that the change to a specific color signifies a presence of a macro molecule)
An iodine solution is places on the cut side of a potato within seconds a blue black color appers what is most likely occurring?
the iodine is reacting with the starch.
What is the color of the leaf at the end of the experiment that test for starch?
the color of the leaf become brown-black after the iodine solution was added.
What do you observe when you observe a potato stained with iodine?
If the iodine on/in the potato turns dark blue/purple/black, it means the iodine has reacted to the starch in the potato and has changed color.
What is the difference between strong iodine solution and weak iodine solution?
their color
What happens if you add iodine to potato?
the color of the potato will become dark blue
Why does petrol change color when mixed with iodine solution?
Petrol changes color when mixed with iodine solution due to covalent bonding.
What color is Lugol's solution prior to changing color?
Lugol's solution is a solution of iodine (1-5%) and potassium iodide in water. So the solution should have the pale color of iodine and the color should be pale (light) brown.
What is the principles of iodine test?
-What is the principle reason for the iodine test?Answer:-This test is used to test for starch prenest in a given solution orIodine test is a test used to determine the presence of starch in a particular substance.A positive result will yield the purple-black color.For example, adding a few drops of iodine solution to potato will seem purple-black color in this solution --->This means that the potato contains starch.by:Abdullah nasser Al-naffar
