Forever! Its a protein and iodine solution test for starch.
2 minutes
A student adds iodine solution to egg white and waits for a color change. How long will the student wait?
Not long...
Petrol changes color when mixed with iodine solution due to covalent bonding.
iodine solution
Not long...
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)
The color not change.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.