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It is an easily reversible chemical reaction known as a redox reaction.
The blue color is due to blue color is due to I2+ cation. The iodine has been oxidized by an oxidizing agent. It can be reduced back to I2 in the reverse reaction.
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∙ 12y ago
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What happens if you add iodine to potato?
the color of the potato will become dark blue
Is it tru that iodine reacts with starch to give a red color?
No when you but iodine with sarch for example a potato the starch reacrs with the iodine and it turns black
What happens to bread when you put iodine on it?
When you pore iodine on a piece of bread, the bread will turn black. Why? Because, the iodine has a chemical reaction with the starch in the bread. This method is great to find out if a food contains starch (I suggest a potato to try next!).
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
What is the test results for iodine test?
Iodine test is a test used to determine the presence of starch in a particular substance.A positive result will yield a black color.For example, adding a few drops of iodine solution to potato will stain the amylocytes black since these are the starch-containing structures of potatoes as seen in a microscope.
Is a potato a chemical or physical change?
A potato is a substance and not a change of any description.
Is mashing a potato a chemical or physical change?
Mashing a potato is a physical change because it's the same substance (the potato is still a potato) but in a different form.- - - - -Making mashed potatoes from fresh potatoes is both a chemical and a physical change: there are many chemical changes that occur when you cook a potato, and physical because it doesn't look anything like it did when you started.
Is cooking a potato physical or chemical?
Basically it is an Chemical reaction due to that it change it physically too. It is a chemical.
Is leaving a potato slice and turns brown is a chemical or physical change?
It is a chemical change - oxidisation.
Is baking of potato a physical or chemical change?
Yes, baking a potato would be considered a chemical change. Typically, anything that involves heat, such as in cooking, is a chemical change due to molecules being chemically altered.
Is a rotting potato a chemical change?
it depends. If u were beating it then it would be physical. But in most cases chemical!
Is ductility a physical or a chemical change?
Being ductile, malleable, freezing, melting are some examples of physical changes of a substance. Physical changes do not form a new substance while chemical changes do. Examples of chemical changes are a rusting nail and combustion.
Is cooking of vegetables a chemical change or physical change?
It is a physical change because the texture of the potato has a been changed after it was cooked.
What liquid will best change the potato's color?
iodine solution
How could you show that potato is a store of starch?
You could cut a piece of potato and put iodine on it. There will be a color change.
What color change would you see when iodine is applied to a freshly cut potato?
The colour expected would be Black, as a reaction between the iodine and potato starch occurs to give a black complex.
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.
