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What is the starch indicator, and how does it change?

What is the starch indicator, and how does it change?
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What is the starch indicator, and how does it change?

User Michael Bisbjerg
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Answer:

Starch is a indicator in the iodometric titration and it turns deep dark blue when iodine is present in a solution. The starch under warming condition forms amylose and amylo pectins which combine with iodine to produce dark blue color.In absence of iodide ion starch indicator is colorless.

User Konradowy
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