KMnO4 acts as an oxidising agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidised to

Question

KMnO4 acts as an oxidising agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidised to (A) I2 (B) IO- (C) IO-3 (D) IO-4

Tardigrade Admin · Accepted Answer

2 KMnO 4+ H 2 O + KI arrow 2 MnO 2+2 KOH + KIO 3 I +6 OH - arrow IO 3-+3 H 2 O +6 e - When alkaline KMnO 4 is treated with KI , I -is oxidised to IO 3 -.

Q. $K M n O_{4}$ acts as an oxidising agent in alkaline medium. When alkaline $K M n O_{4}$ is treated with KI, iodide ion is oxidised to

$I_{2}$

$I O^{-}$

$I O_{3}^{-}$

$I O_{4}^{-}$

$< b r / > 2 K M n O_{4} + H_{2} O + K I \to 2 M n O_{2} + 2 K O H + K I O_{3} < b r / >$
$< b r / > I + 6 O H^{-} \to I O_{3}^{-} + 3 H_{2} O + 6 e^{-} < b r / >$
When alkaline $K M n O_{4}$ is treated with $K I, I^{-}$ is oxidised to $I O_{3}^{-}$ .

Q. KMnO4​ acts as an oxidising agent in alkaline medium. When alkaline KMnO4​ is treated with KI, iodide ion is oxidised to

I2​

IO−

IO3−​

IO4−​