What is the substance formed when iodine reacts with starch
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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. In the absence of starch, the brown colour of the aqueous solution remains. hope you got ur answer. ;-)
Anonymous:
what is the resultant substance formed
bro starch remains starch butAmylose in starch is responsible for the formation of a deep blue color in the presence of iodine.
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When few drops of iodine fall on starch substance, blue- black colour is observed. This is because of the formation of starch-iodine complex that gives blue colour. Thus, this property of Iodine is generally used to test the presence of starch.
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