How would you test the presence of starch in leaves.
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When iodine comes in contact with starch,
a dark blue black colour
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1. take a leaf and boil it in alcohol so that chlorophyll can be removed. (pic one)
2. the leaf gets Decolourished. (pic two)
3. now add some iodine solution on the leaf with the help of a dropper.
4. You will observe that the leaf starts turning blue-black this signifies that starch is present in leaf.
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