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Chemistry
Which is not the true statement about KMnO 4 ?
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Q. Which is not the true statement about $KMnO _4$ ?
The d-and f-Block Elements
A
Its solution is unstable in acidic medium
B
Its small quantity added to conc. $H _2 SO _4$, a green coloured solution containing $MnO _3^{+}$ions is formed
C
$MnO _4^{-}$changes to $Mn ^{2+}$ in basic solution
D
It is self-indicator in $Fe ^{2+}$ or $Cr _2 O _4^{2-}$ titration
Solution:
$MnO _4^{-}$charges to $MnO _4^{2-}$ or $MnO _2$ in basic medium