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.
the color of the potato will become dark blue
No when you but iodine with sarch for example a potato the starch reacrs with the iodine and it turns black
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 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
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.
A potato is a substance and not a change of any description.
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.
Basically it is an Chemical reaction due to that it change it physically too. It is a chemical.
It is a chemical change - oxidisation.
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.
it depends. If u were beating it then it would be physical. But in most cases chemical!
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.
It is a physical change because the texture of the potato has a been changed after it was cooked.
iodine solution
You could cut a piece of potato and put iodine on it. There will be a color change.
The colour expected would be Black, as a reaction between the iodine and potato starch occurs to give a black complex.
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.