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Oxidation of I- by KMnO4

  1. May 25, 2012 #1
    Why in acidic medium KMnO4 oxidises KI ( I-) to I2 but in alkaline medium to IO3 -

    KMnO4 is a stronger oxidising agent in acidic medium right then why doesn't it oxidise I- to IO3- in acidic medium too?
     
  2. jcsd
  3. May 25, 2012 #2

    Borek

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    Staff: Mentor

  4. May 25, 2012 #3
    It says in low pH iodine is oxidised by oxygen so it supports that IO3- should be formed in acidic medium
    Probably i didn't get the hint
     
  5. May 25, 2012 #4

    Borek

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    Staff: Mentor

    See the last reaction equation.
     
  6. May 25, 2012 #5
    Oh how did i miss that? Thanks
     
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