In the reaction between $KI$ and acidic potassium dichromate solution,the oxidation state of chromium in the final product is ........

The values of coefficients to balance the following reaction are
$Cr(OH)_3 + ClO^{-} + OH^{-} \to CrO_4^{2-} + Cl^{-} + H_2O$
Find the coefficients for $Cr(OH)_3$,$ClO^{-}$,$CrO_4^{2-}$,and $Cl^{-}$ respectively.

$KMnO_4$ reacts in alkaline medium as follows:
$2KMnO_4 + 2KOH \to 2K_2MnO_4 + H_2O + O$
What is the equivalent weight of $KMnO_4$?
(Atomic weights: $K = 39, Mn = 55, O = 16$)

The number of moles of acidified $KMnO_4$ required to convert one mole of sulphite ion into sulphate ion is

In the balanced redox reaction $MnO_4^- + xFe^{2+} + yH^+ \rightarrow Mn^{2+} + 5Fe^{3+} + 4H_2O$,what are the values of $x$ and $y$?

$2 MnO_4^{-} + bI^{-} + cH_2O \rightarrow xI_2 + yMnO_2 + zOH^{-}$
If the above equation is balanced with integer coefficients,the value of $z$ is . . . . . .