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? asked in Science & MathematicsChemistry · 1 decade ago

KI Starch Paper: Why would black be indicative of oxidants? Explain?

Why is it that if KI Starch paper turns black means it is positive of oxidants?

3 Answers

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  • Lucas C
    Lv 7
    1 decade ago
    Favorite Answer

    Iodide ions by themselves don't react with the starch, but if an oxidant is present, it oxidizes some of the iodide ions to elemental iodine. The iodine reacts with the starch to form a distinctive blue-black color. No oxidants = no iodine produced = no color change.

    I hope that helps. Good luck!

  • Wilona
    6 years ago

    This Site Might Help You.

    RE:

    KI Starch Paper: Why would black be indicative of oxidants? Explain?

    Why is it that if KI Starch paper turns black means it is positive of oxidants?

    Source(s): ki starch paper black indicative oxidants explain: https://shortly.im/Ww7JK
  • ?
    Lv 4
    4 years ago

    Starch Iodine Paper

    Source(s): https://shrinkurl.im/a0IDm
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