Aim. To test if a sample of food contains complex sugars
method.
1. place about 2 mL of the sample in a test tube
2. Add 3-55 drops of iodine and mix it
Results. if it's complex sugar (i.e starch) are present the iodine solution will change from brown colour to blue/black if the iodine solution doesn't change colour the no complex sugars are present
Did it work? yes, it showed us if the food contains complex sugar.
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