Oxidation of oxalic acid by acidified $KMn{O}_{4}KMnO\_4$ is an example of autocatalysis, it is due to the presence of

In the preparation of $KMn{O}_{4}KMnO\_4$ , pyrolusite ($Mn{O}_{2}MnO\_2$) is first converted to potassium manganate ($K_{2}Mn{O}_{4}K\_2MnO\_4$). In this conversion, the oxidation state of manganese changes from

Deep green precipitate of $Cr(OH{)}_{3}Cr(OH)\_3$ gives yellow solution on addition $H_2{O}_{2}H\_2O\_2$ in presence of excess of base. The yellow colour is due to

$K_{2}C{r}_2{O}_{7}K\_2Cr\_2O\_7$ is preferred to $N{a}_{2}C{r}_2{O}_{7}Na\_2Cr\_2O\_7$ for use in volumetric analysis as a primary standard because

What would happen when a solution of potassium chromate is treated with an excess of dilute $HN{O}_3?HNO\_3?$

The product of oxidation of $I^{-}I^-$ with $Mn{O}_{4}MnO\_4$ in alkaline medium is

The purple colour of $KMn{O}_{4}KMnO\_4$ is due to the transition

$KMn{O}_{4}KMnO\_4$ reacts with $B{r}^{-}Br^-$in alkaline $P^{H}P^H$ to give

A student accidentally added conc.$H_{2}S{O}_{4}H\_2SO\_4$ to potassium permanganate and it exploded due to the formation of an explosive which is

$KMn{O}_{4}KMnO\_4$ gets reduced to