In weak alkaline medium iodide is changed in following compound b… - Vidyadip

MCQ

In weak alkaline medium iodide is changed in following compound by $KMnO_4$

A
$I_2$
B
$KI$
C
$IO^{-}_{2}$
✓
$IO^{-}_{3}$

✓

Answer

Correct option: D.

$IO^{-}_{3}$

d
$2 KMnO _4+ H _2 O + KI \rightarrow 2 MnO _2+2 KOH + KIO _3$

$I +6 OH ^{-} \rightarrow IO _3^{-}+3 H _2 O +6 e ^{-}$

When alkaline $KMnO 4$ is treated with $KI ^{-}{ }^{}$is oxidised to $IO _3{ }^{-}$.

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