Write the test for starch and test for fat
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After adding Iodine solution on the substance if it turns blue black then that substance contains starch.
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Explanation:
• Iodine test
Iodine test. The iodine test is used to test for the presence of starch. Starch turns into an intense "blue-black" colour upon addition of aqueous solutions of the triiodide anion, due to the formation of an intermolecular charge-transfer complex.
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