Biology, asked by queenmanisha, 9 months ago

SIIUWS wis arrangemell!
Iodine turns the starch into blue black colour. Why?

Answers

Answered by rajputayush30

2

Answer:

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 color of the aqueous solution remains.

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