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.

A mixture of Al_(2)O_(3) and Fe_(2)O_(3) can be separated by using

Which among FeO and Fe_2O_3 is more basic?

A mixture of Al_(2) O_(3) and Fe_(2) O_(3) can be separa-ted by using

A mixture of Al_(2)O_(2) and Fe_(2) can be separated by using

3 moles of a mixture of FeSO_(4) and Fe_(2)(SO_(4))_(3) required 100 mL of 2 M KMnO_(4) solution in acidic medium. Hence, mole fraction of FeSO_(4) in the mixture is

How many milli-gram of iron (Fe^(2+)) are equal to 1mL of 0.1055N K_(2) Cr_(2)O_7 equivalent ?

A bottle of H_2 O_2 is labelled as 10 vol H_2O_2 112ml of this H_2O_2 solution is completely titrated with 0.04M acidified KMnO_4 solution. The volume of KMnO_4 consumed in litres is

Thermite is a mixture of Fe_(2)O_(3) and

What is the approximate volume (in mL) of 10 vol H_(2)O_(2) solution that will react completely with 1 L of 0.02 M KMnO_(4) solution in acidic medium?

A quantity of 25.0 mL of solution containing both Fe^(2+) and Fe^(3+) ions is titrated with 25.0 mL of 0.0200 M KMnO_(4) (in dilute H_(2)SO_(4) ). As a result, all of the Fe^(2+) ions are oxidised to Fe^(3+) ions. Next 25 mL of the original solution is treated with Zn metal finally, the solution requires 40.0 mL of the same KMnO_(4) solution for oxidation to Fe^(3+) . MnO_(4)^(-)+5Fe^(2+)+8H^(+)toMn^(2+)+5Fe^(3+)+4H_(2)O Zinc aded in the second titration wil