`0.5g` mixture of `K_2Cr_2 O_7 and KMnO_4` was treated with excess of `KI` in acidic medium. Iodine liberated required `150cm^3` of `0.1N` solution of thiosulphate solution for titration. Find the percentage of `K_2 Cr_2 O_7` in the mixture :

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 :

0.5 g mixture of K_(2)Cr_(2)O_(7) and KMnO_(4) was treated with excess of KI in acidic medium. Iodine liberated required 100 cm^(3) of 0.15N sodium thiosulphate solution for titration. Find the per cent amount of each in the mixture.

10 g mixture of K_(2)Cr(2)O_(7) and KMnO_(4) was treated with excess of KI in acidic medium. Iodine liberated 100 cm^(3) of 2.2 N sodium thiosulphate solution for titration. If the mass percent of KMnO_(4) in the mixture Z, then what is the value of 2Z/5 ?

A mixture containing 0.05 mole of K_2Cr_2O_7 and 0.02 mole of KMnO_4 was treated with excess of KI in acidic madium. The librated iodine required 1.0L of NaS_2 O_3 solution for titration. Concentration of Na_2 S_2 O_3 solution was :

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:

1.5 g of a mixture containing As_2O_5 , Na_2HAsO_3 , and some inert impurities is dissolved in water, and the solution is kept neutral by adding excess of NaHCO_3 . The solution when titrated with 0.1 M I_2 required 35.0 nL of it for complete titration. The solution is then acidified and excess of KI is added to it. The I_2 liberated required 35.0mL of 0.3 M Na_2S_2O_3 solution for complete titration. Find the percentage composition of the mixture (Atomic mass of As is 75, Na is 23 and O is 16.)

How many moles of K_2Cr_2O_7 required to react completely with 1 mol of H_2S in acidic medium?

A 7.1 g sample of bleaching powder suspended in H_(2)O was treated with enough acetic acid and KI solution. Iodine thus liberated required 80 mL of 0.2 N hypo solution for titration. Calcutale the % of available chlorine :

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

Aniline when treated with K_2 Cr_2 O_7 in conc H_2 SO_4 gives :