A mixture of `KMnO_(4) and K_(2)Cr_(2)O_(7)` weighing 0.24 g on being treated with KI in acid solution liberates just sufficient `I_(2)` to react with 60 mL of 0.1 `Na_(2)S_(2)O_(3)` solution. Find out weight of `KMnO_(4) and K_(2)Cr_(2)O_(7)` in the mixture.

Equivalent weights of K_(2)Cr_(2)O_(7) in acidic medium is

Find the oxidation number of: Cr in K_(2)Cr_(2)O_(7)

In that compounds KMnO_(4) and K_(2)Cr_(2)O_(7) the highest oxidation state the element:

A mixture contaning 0.05 moleof K_(2)Cr_(2)O_(7) and 0.02 "mole of" KMnO_(4) was treated eoith excess of KI in acidic medium. The liberated iodine required 1.0L "of" Na_(2)S_(2)O_(3) solution for titration. Concentration of Na_(2)S_(2)O_(3) solution was:

A mixture of FeO and Fe_(2)O_(3) is completely reacted with 100 mL of 0.25 M acidified KMnO_(4) solution. The resultant solution was then treated with Zn dust which converted Fe^(3+) of the solution to Fe^(2+) .The Fe^(2+) required 1000 mL of 0.10 MK_(2)Cr_(2)O_(7) solution. Find out the weight % Fe_(2)O_(3) in the mixture.

When H_(2)O_(2) is added to a acidified solution of K_(2)Cr_(2)O_(7) :

A solid mixture of AgCl ad K_(2)Cr_(2)O_(7) is heated with conc. H_(2)SO_(4) and produces:

0.5 gmixture of K_(2)Cr_(2)O_(7) and KMnO_(4) was treated with excess of KI in acidic medium. Iodine liberated required 150 cm^(3) of 0.10 N solution of thiosulphate solution for titration. Find trhe percentage of K_(2)Cr_(2)O_(7) in the mixture :

In the neutralization of Na_(2)S_(2)O_(3) using K_(2)Cr_(2)O_(7) by idometry, the equivalent weight of K_(2)Cr_(2)O_(7) is

Acidic K_(2)Cr_(2)O_(7) reacts with H_(2)S to produce: