Oxidation of I- by KMnO4

  • Thread starter jd12345
  • Start date
  • #1
256
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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?
 

Answers and Replies

  • #3
256
2
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
 
  • #4
Borek
Mentor
28,569
3,023
See the last reaction equation.
 
  • #5
256
2
Oh how did i miss that? Thanks
 

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