What chemmical do you add to some starch dissolved in water?
few drops of iodine solution.
A few drops of iodine solution are added to?
some starch dissolved in water.
What colour is iodine?
red-brown.
Drops of iodine solution get added to water for what?
as a control.
If starch is present, the colour turns?
blue-black.
If the colour turns blue-black that means?
starch is present.
If starch is absent, the colour turns?
stays red-brown.
What is the test for starch also called?
iodine tests.