Question

y only iodine is used to test for starch y not other?​

Answer 1

Explanation:

Iodine is used as a test for starch (both linear Amylose and branched Amylopectin) because of the distinct colour change, deep orange to dark blue, that occurs when it forms a polyiodide complex with certain polysaccharides.

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Answer 2

Answer:

iodine reacts with carbohydrate and turns to blue color easily