Ncert Exercises & Solutions

$K M n O_{4} a c t s a s a n o x i d i \sin g a g e n t i n a l k a l i n e$
$m e d i u m . W h e n a l k a l i n e K M n O_{4} i s t r e a t e d$
$w i t h K I, i o d i d e i o n i s o x i d i s e d t o . . . . . . . . . .$

$1 . I_{2}$
$2 . I O^{-}$
$3 . I O_{3}^{-}$
$4 . I O_{4}^{-}$

$K M n O_{4}$ acts as an oxidising agent in alkaline medium.When alkaline $K M n O_{4}$ is treated with KL, iodide ion i oxidised to $I O_{3}^{-}$ $R e a c t i o n 2 K M n O_{4} + H_{2} O + K I \to 2 M n O_{4} + 2 K O H + K I O_{3}$
$o r, I^{-} + 6 O H^{-} \to I O_{3}^{-} + 3 H_{2} O + 6 e^{-}$

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