Which chemical us used to test the presence of starch? Which color shows the presence of starch?
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A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solutiontest. For example, if iodine is added to an peeled potato then it will turn black.
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Iodine...
Blue-black...
Blue-black...
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